• Skip to primary navigation
  • Skip to main content

Luggage Advisor

  • Luggage Buying Guide
You are here: Home / Luggage / Carry On Back Review: Discover the Best Travel Backpack

Carry On Back Review: Discover the Best Travel Backpack

May 12, 2026 by Emily

Quick Verdict
🏆 Best Overall: Should You Get a 45 → — Lightweight, expandable design adapts perfectly for all travel needs
Similar on Amazon: Hayayu for Easyjet Cabin Bag 45x36x20, Water-Resistant…
🔥 See Today’s Price on Amazon →See Price (Details)Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on amazon.co.uk or amazom.com at the time of purchase will apply to the purchase of this product.

Who Is It For?


Hayayu for Easyjet Cabin Bag 45x36x20, Water-Resistant Underseat Cabin Bag Travel Backpack, Carry on Hand Luggage Bag with Charging Port and Anti Theft Pocket

Are you tired of struggling with bulky luggage that weighs you down? The right carry-on backpack can simplify your travels and keep you organized. This review explores various options to help you choose the best fit based on performance, value, and user experience.

Therefore, you can travel light and enjoy your adventures without stress. Should You Get a 45- Or 35-liter Bag? Text: for the Most (Similar on Amazon: Hayayu for Easyjet Cabin Bag 45x36x20, Water-Resistant… →See Price (Details)Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on amazon.co.uk or amazom.com at the time of purchase will apply to the purchase of this product.).

Reviewed Luggage Models

Eastpak TRANVERZ M Suitcase, 67 x 35.5 x 30 cm, 78 L - Black (Black)

When choosing the right travel bag, it’s important to understand the differences between various models. Here, we will look at three popular options: Should You Get a 45- Or 35-liter Bag? Text: for the Most, Cotopaxi Allpa 35L Travel Pack Del Dia, and Patagonia Black Hole MLC 45L.

Each bag serves different needs and preferences, making it easier for you to decide.
The Should You Get a 45- Or 35-liter Bag? Text: for the Most discusses the benefits of both sizes.

If you usually pack light, the 35-liter bag is great for trips lasting about a week. However, heavier packers or those on longer journeys may prefer the 45-liter option. (Finding the Best Small Carry-On Bag for Travelers)
The Cotopaxi Allpa 35L Travel Pack Del Dia is known for its easy organization and comfort. It has a clamshell design for easy packing and weighs only 2 pounds 7 ounces. This bag is perfect for shorter trips and is made with durable materials.
On the other hand, the Patagonia Black Hole MLC 45L (Similar on Amazon: Eastpak TRANVERZ M Suitcase, 67 x 35.5 x 30 cm, 78 L -… →See Price (Details)Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on amazon.co.uk or amazom.com at the time of purchase will apply to the purchase of this product.) is a larger option with a capacity of 45 liters, making it suitable for longer travels.

It weighs 3 pounds 10 ounces and also features a clamshell opening. This bag is designed like a suitcase, making it easier to organize your items, especially for business trips.
Choosing the right bag depends on your travel style and needs.

Whether you prefer a lighter pack for quick getaways or a larger bag for extended trips, these options cater to different preferences.

Product Capacity Weight Main Compartment Access
Should You Get a 45- Or 35-liter Bag? Text: for the Most 45 or 35 liters — —
Cotopaxi Allpa 35L Travel Pack Del Dia 35 liters 2 pounds 7 ounces Clamshell opening
Patagonia Black Hole MLC 45L 45 liters 3 pounds 10 ounces Clamshell

Design and Build Quality

When choosing a travel backpack, design and build quality are key factors. A well-built bag can make your journey smoother and more enjoyable.
Next, we will compare various options based on their construction, materials, and overall durability.

You’ll discover how these features affect comfort and usability on your adventures. (Comprehensive Review of Laptop Carry-On Bags)

  • Materials used for weather resistance
  • Comfort features like padded straps
  • Internal organization for easy packing
  • Durability for long-lasting use

Materials and Durability

When choosing a travel bag, materials and durability are super important. You want a bag that can handle rough trips and keep your belongings safe. Let’s take a closer look at three great options: the Should You Get a 45- Or 35-liter Bag? Text: for the Most, the Cotopaxi Allpa 35L Travel Pack Del Dia, and the Patagonia Black Hole MLC 45L.

The Should You Get a 45- Or 35-liter Bag? Text: for the Most suggests that a 45-liter bag is better for heavy packers or longer trips. This size provides extra space, which means you can carry more stuff. However, it may not be as easy to handle if you prefer a lighter load.

The Cotopaxi Allpa 35L Travel Pack Del Dia is made from strong 100% recycled nylon. This material is tough, like canvas, and can withstand wear and tear. Plus, it has a rain fly to protect your things from water. It’s perfect for trips lasting a few days and is easy to organize.

In contrast, the Patagonia Black Hole MLC 45L is built from recycled polyester, making it both durable and eco-friendly. This bag has a split interior that helps you keep your items organized, similar to a suitcase. It’s a bit heavier but offers great support, especially for tech items.

In summary, if you need extra space and durability, the Should You Get a 45- Or 35-liter Bag? Text: for the Most might be perfect. For a smaller, more organized option, consider the Cotopaxi Allpa 35L. Lastly, if you want a bag that feels like luggage but works like a backpack, the Patagonia Black Hole MLC 45L is a great choice.

Storage and Organization

Storage and organization are key when choosing a travel backpack. A well-organized bag makes packing easier and helps you find things quickly. Therefore, let’s explore how different backpacks handle storage and what features make them stand out.

  • Multiple compartments for easy access
  • Special pockets for laptops and valuables
  • Expandable space for extra items

Packing Efficiency

When choosing a travel bag, interior capacity and packing efficiency are very important. Let’s compare three great options: Should You Get a 45- Or 35-liter Bag? Text: for the Most, Patagonia Black Hole MLC 45L, and Cotopaxi Allpa 35L Travel Pack Del Dia.

The Should You Get a 45- Or 35-liter Bag? Text: for the Most suggests that a 35-liter bag is often perfect for trips lasting about a week. However, if you pack a lot or go on longer trips, a 45-liter bag might be better. This choice can help you pack just what you need without overloading your bag.

The Patagonia Black Hole MLC 45L has a spacious 45-liter capacity and a split interior design. This makes it easy to keep your clothes, tech, and documents organized. It’s like having a mini office on the go, perfect for business travelers who need to keep everything in its place.

On the other hand, the Cotopaxi Allpa 35L Travel Pack Del Dia is a smaller option, but it still offers a surprising amount of space. With a clamshell design, it opens up like a suitcase, allowing you to pack efficiently. It’s great for shorter trips and those who like to travel light while staying organized.

Product Capacity Main Compartment Access Ideal For
Should You Get a 45- Or 35-liter Bag? Text: for the Most 35-45 liters — Week-long trips
Patagonia Black Hole MLC 45L 45 liters Split interior Business travel
Cotopaxi Allpa 35L Travel Pack Del Dia 35 liters Clamshell opening Short trips

In summary, if you prefer a larger capacity and need to stay organized, the Patagonia Black Hole MLC 45L is a solid choice. If you’re looking for something smaller and more versatile, the Cotopaxi Allpa 35L Travel Pack Del Dia is perfect for shorter getaways. The decision really comes down to your travel needs!

Mobility and Handling

Mobility and handling are crucial when choosing a travel backpack. A well-designed bag makes your journey easier and more enjoyable. Different backpacks offer unique features that cater to various travel styles and needs.

(Best Carry-On Backpacks Reviewed: Top Picks for Travelers)
For example, some backpacks focus on lightweight designs, while others emphasize organization and comfort. Consider the following aspects when comparing options:

  • Weight and size for easy carrying
  • Pockets and compartments for organization
  • Adjustable straps for comfort
  • Durability for long-lasting use

Wheels and Maneuverability


Osprey Rolling Transporter 40 Unisex Travel Wheeled Suitcase Tan Concrete O/S

When choosing a travel bag, wheels and how easy it is to move can really matter. You might want something that rolls smoothly or that you can carry easily, depending on your trip. Here, we will look at three travel bags: the Patagonia Black Hole MLC 45L, the Osprey Farpoint 40 (Similar on Amazon: Osprey Rolling Transporter 40 Unisex Travel Wheeled… →See Price (Details)Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on amazon.co.uk or amazom.com at the time of purchase will apply to the purchase of this product.), and “Should You Get a 45- Or 35-liter Bag? Text: for the Most.”

The Patagonia Black Hole MLC 45L is designed like a suitcase, which makes it easy to roll through airports. It has a split interior that helps keep your items organized and is comfortable to carry when rolling. However, it might feel heavy when fully packed, especially if you’re navigating crowded areas.

The Osprey Farpoint 40 offers a more traditional backpack style with shoulder straps. This bag is great for walking long distances, thanks to its hiking backpack frame. It also has a clamshell design, making it easy to pack and access your items quickly. However, it does not have wheels, so it’s not ideal for those who prefer to roll their bags.

“Should You Get a 45- Or 35-liter Bag? Text: for the Most” suggests thinking about your packing needs. If you often travel with heavy items, a bag with wheels like the Patagonia Black Hole MLC 45L might be the best choice. If you like a lighter option that you can carry, the Osprey Farpoint 40 could work better.

In summary, if you want wheels for easy transport, the Patagonia Black Hole MLC 45L is excellent. But if you prefer a backpack style for walking, the Osprey Farpoint 40 is a good choice. Think about your travel style to find what fits best!

Security and Safety

When traveling, security and safety are top priorities. A good travel backpack can help keep your belongings safe, giving you peace of mind. Many options offer features designed to protect your items, which makes your journey smoother and worry-free.
Here are some important features to consider:

  • Anti-theft designs to deter pickpockets
  • Durable materials that withstand wear and tear
  • Lockable zippers for added security
  • Reflective details for visibility at night

Anti-Theft Features


COOLIFE 28 Inch Large Suitcase for Checked Luggage, Business Trip, ABS+PC, Lightweight Hard Shell Luggage with 360°Rubber Spinner Wheels, YKK Zipper, Telescopic Handle, TSA Lock, Black

When traveling, keeping your belongings safe is super important. Let’s compare three bags that offer great security features: the Should You Get a 45- Or 35-liter Bag? Text: for the Most, the Pacsafe Venturesafe EXP45 (Similar on Amazon: COOLIFE 28 Inch Large Suitcase for Checked Luggage,… →See Price (Details)Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on amazon.co.uk or amazom.com at the time of purchase will apply to the purchase of this product.), and the Patagonia Black Hole MLC 45L.

The Should You Get a 45- Or 35-liter Bag? Text: for the Most doesn’t focus much on anti-theft features. However, it provides enough space for careful packing, which can help keep items organized.

In contrast, the Pacsafe Venturesafe EXP45 is specifically designed for security. It has a locking zipper and a cut-resistant strap, making it hard for thieves to grab your bag. Plus, it comes with a discreet pocket for valuables, adding an extra layer of protection.

The Patagonia Black Hole MLC 45L has a different approach. It is built with durable materials and a spacious split interior. However, it lacks specific anti-theft features like locking mechanisms, which means it may require extra caution when traveling.

Product Key Features Anti-Theft Features
Should You Get a 45- Or 35-liter Bag? Text: for the Most Spacious, good organization —
Pacsafe Venturesafe EXP45 Locking zippers, cut-resistant strap Yes
Patagonia Black Hole MLC 45L Durable, split interior No locking features

In summary, if you need excellent anti-theft features, the Pacsafe Venturesafe EXP45 is your best bet. It offers strong security to keep your items safe. Meanwhile, the Patagonia Black Hole MLC 45L is great for organization but lacks specific security features.

The Should You Get a 45- Or 35-liter Bag? Text: for the Most is a good option for packing but doesn’t provide added safety measures.

Build Strength and Zippers

When choosing a travel backpack, the zippers, closures, and overall build strength can make a big difference. Here, we’ll compare three standout options: Should You Get a 45- Or 35-liter Bag? Text: for the Most, Patagonia Black Hole MLC 45L, and Osprey Farpoint 40 and Fairview 40. Each bag offers unique features that cater to different needs.

The Should You Get a 45- Or 35-liter Bag? Text: for the Most is ideal for those who pack heavier or go on longer trips. It suggests a 45-liter bag for more space and versatility. This bag’s design supports easy packing, making it great for various travel situations.

The Patagonia Black Hole MLC 45L features a clamshell opening with strong YKK zippers. Its split interior helps in organizing tech and other items, making it feel like a mini office. The material is durable and weather-resistant, which is perfect for protecting your belongings.

The Osprey Farpoint 40 and Fairview 40 packs also have a clamshell design, making packing easy. They are built for travel and hiking, with a sturdy frame that allows for comfortable carrying. Importantly, these bags come with a lifetime warranty, ensuring they are made to last.

In summary, if you need a bag for longer trips, the Should You Get a 45- Or 35-liter Bag? Text: for the Most is a solid choice. For those who want a durable option with great organization, the Patagonia Black Hole MLC 45L excels.

However, if comfort and a sturdy frame are your priorities, the Osprey Farpoint 40 and Fairview 40 are excellent options. Each bag has its strengths, so think about your travel needs when choosing!

Airline Compatibility

When choosing a travel backpack, it’s essential to think about how well it fits airline regulations. Many travelers worry about getting stuck with oversized bags. Here, we’ll discuss a few popular options and how they stack up in terms of airline compatibility.

First up is the “Should You Get a 45- Or 35-liter Bag? Text: for the Most.” This guide suggests that a 35-liter bag is great for trips lasting about a week. However, if you pack more or are going for longer, a 45-liter bag might be better. This flexibility can help you decide based on your travel needs.

Next, the “Osprey Farpoint 40 and Fairview 40” backpacks are known for being excellent choices for one-bag travel. They are both designed to fit within most airlines’ carry-on size limits. This means you can easily take them on board without worrying about extra fees.

Lastly, the “Patagonia Black Hole MLC 45L” is also a solid option. While its larger size might seem intimidating, it is still designed to comply with many airline regulations for carry-on luggage. Plus, its compartments are great for organizing tech and travel essentials.

Product Capacity Airline Compatibility
Should You Get a 45- Or 35-liter Bag? Text: for the Most 35L or 45L Good for most airlines
Osprey Farpoint 40 and Fairview 40 40L Fits most carry-on limits
Patagonia Black Hole MLC 45L 45L Generally compliant

Choosing the right bag can make your travels smoother. Consider the size and features of each option to find the best fit for your next adventure!

Smart Features

When choosing a travel bag, smart features can make your journey easier and more enjoyable. Let’s compare three popular options: the Should You Get a 45- Or 35-liter Bag? Text: for the Most, Patagonia Black Hole MLC 45L, and Osprey Farpoint 40 and Fairview 40.

Product Best For Key Features Weight
Should You Get a 45- Or 35-liter Bag? Text: for the Most Flexible Packing Options Choose between 35L for light packing or 45L for longer trips —
Patagonia Black Hole MLC 45L Business Travel Split interior for organization, laptop compartment 3 pounds 10 ounces
Osprey Farpoint 40 and Fairview 40 Beginner Travelers Clamshell design, adjustable straps, durable frame —

The Should You Get a 45- Or 35-liter Bag? Text: for the Most offers flexibility in size, making it easy to pick the right fit for your trip length. On the other hand, the Patagonia Black Hole MLC 45L is excellent for business travel, thanks to its organized compartments for tech and documents.

Finally, the Osprey Farpoint 40 and Fairview 40 are great for new travelers, as they are easy to pack and carry.
These unique features can help you decide which bag fits your travel style best! Whether you need a lightweight option or a more structured bag for work, there’s something here for everyone.

Maintenance and Durability

When choosing a backpack, maintenance and durability are important factors. Let’s compare three popular options: the Patagonia Black Hole MLC 45L, the Cotopaxi Allpa 35L Travel Pack Del Dia, and Should You Get a 45- Or 35-liter Bag? Text: for the Most.

The Patagonia Black Hole MLC 45L is built from recycled polyester and has a tough, weather-resistant coating. This means it can handle rough conditions while keeping your belongings safe. It also comes with a lifetime warranty, ensuring that if anything happens, you can get it repaired or replaced.

On the other hand, the Cotopaxi Allpa 35L Travel Pack Del Dia is made from 100% recycled ripstop nylon, which is strong and durable. It includes a rain fly, perfect for unexpected weather. This bag is known for its clamshell design, making it easy to pack and unpack. Its lifetime warranty also assures you of its longevity.

Lastly, Should You Get a 45- Or 35-liter Bag? Text: for the Most suggests that a 45-liter bag is great for longer trips but can be heavier. If you want something lighter and easier to carry, a 35-liter bag might be better.

In summary, the Patagonia Black Hole MLC 45L and Cotopaxi Allpa 35L Travel Pack Del Dia both offer strong materials and great warranties. However, if you’re looking for a versatile option for long trips, the guide suggests considering a 45-liter bag despite its weight.

User Feedback

Finding the right travel bag can really change how you feel about packing. Let’s look at a few popular options: the Should You Get a 45- Or 35-liter Bag? Text: for the Most, the Cotopaxi Allpa 35L Travel Pack Del Dia, and the Patagonia Black Hole MLC 45L. Each bag has its own strengths that make it great for different types of travelers.

Product Best For Capacity Weight Main Compartment Access
Should You Get a 45- Or 35-liter Bag? Text: for the Most Travelers unsure about size 35L or 45L — —
Cotopaxi Allpa 35L Travel Pack Del Dia Short trips 35L 2 lbs 7 oz Clamshell
Patagonia Black Hole MLC 45L Business travel 45L 3 lbs 10 oz Clamshell

The Should You Get a 45- Or 35-liter Bag? Text: for the Most gives practical advice on choosing between two sizes. It’s great for people who pack differently or travel for different lengths of time. However, it doesn’t provide specific features.

The Cotopaxi Allpa 35L Travel Pack Del Dia is perfect for quick getaways. Its clamshell design makes it easy to pack and access your belongings. Many users love how comfortable it is to carry, even on longer walks.

On the other hand, the Patagonia Black Hole MLC 45L is a favorite for business trips. It has a well-organized interior that helps keep tech and documents in order. Users appreciate its durability and comfort, although its larger size might be a bit too much for some travelers.

Choosing the right bag depends on what you need. If you want flexibility in size, consider the Should You Get a 45- Or 35-liter Bag? Text: for the Most. For short trips, the Cotopaxi bag is excellent. If you often travel for work, the Patagonia bag might be your best bet.

Value and Final Verdict


Hayayu for Easyjet Cabin Bag 45x36x20, Water-Resistant Underseat Cabin Bag Travel Backpack, Carry on Hand Luggage Bag with Charging Port and Anti Theft Pocket

However, if you’re looking for a reliable and versatile travel backpack, you should consider Should You Get a 45 (Similar on Amazon: Hayayu for Easyjet Cabin Bag 45x36x20, Water-Resistant… →See Price (Details)Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on amazon.co.uk or amazom.com at the time of purchase will apply to the purchase of this product.). This option stands out for its thoughtful design and sturdy construction, making it well worth the investment. Also, its spacious capacity allows you to pack everything you need for your trips without worrying about checking a bag.

Therefore, if you want a travel backpack that combines comfort, organization, and durability, Should You Get a 45 is a great choice. It offers excellent value for money, especially for those who travel frequently and prefer to keep their luggage light and manageable.

Frequently Asked Questions

Q1. What size backpack should I choose for my trip?
Choosing between a 45-liter or a 35-liter bag depends on your packing style. A 45-liter bag holds more but can be heavy. A 35-liter is lighter and easier to manage for shorter trips.
Q2. Are these carry-on backpacks durable?
Yes, many carry-on backpacks, like the Cotopaxi Allpa 35L, are made from strong materials such as recycled ripstop nylon. This makes them both durable and weather-resistant, great for various travel conditions.
Q3. Will the 35L backpack fit as a carry-on for flights?
Most airlines accept a 35-liter backpack as a carry-on, especially if it meets standard dimensions. Always check your airline’s specific size requirements to avoid issues at the gate.
Q4. What features should I look for in a carry-on backpack?
Look for features like a clamshell design for easy packing, comfortable straps, and multiple compartments for organizing your gear. A water bottle pocket can also be very handy.
Q5. Is the backpack suitable for different body types?
Many backpacks, like the Osprey Farpoint 40, come with adjustable straps to fit different torso lengths. This helps ensure comfort for all users, regardless of their size.
Q6. How much can I pack in these backpacks?
A 35-liter backpack can typically hold enough for a week-long trip. If you pack light or plan for shorter trips, this size is usually sufficient.
Q7. What materials are used in these backpacks?
Durable materials like high-denier nylon and recycled polyester are common in carry-on backpacks. These materials are designed to withstand wear and tear and keep your belongings safe.
Q8. Is there a return policy for these backpacks?
Most retailers provide a return window for backpacks, often around 14 days, allowing you to return or exchange the bag if it doesn’t meet your needs.


Check Price on Amazon

Filed Under: Luggage

As an Amazon Associate I earn from qualifying purchases. If a product isn’t available on Amazon, I’ve included a link to the closest match I could find.

  • About
  • Privacy Policy
  • Contact Us