S5 Travel Backpack 40L

$99.00 $129.00 Save 23%
27–40L expandable carry-on travel capacity
Multiple pockets for laptop, clothing, toiletry and travel essentials
Thickened nylon with waterproof coating, padded shoulder straps
Type

Stop checking bags. The S5 fits everything you need for a weekend trip in one carry-on backpack.

Its expandable 27–40L structure gives you flexibility — pack light for a quick trip, or expand for a longer stay. The wide-opening main compartment lets you pack and unpack like a suitcase, without digging through layers.

A separate water-resistant pocket keeps toiletries, wet items, or bottles away from your clothes. Laptop compartment, privacy pocket, and organized sections keep your gear exactly where you need it.

Made with thickened nylon and a waterproof coating — built to handle airport transfers, light rain, and the wear of real travel.

✈️ Carry-on approved. No checked bag fees. No waiting at baggage claim.

Product Options

Dimensions: 48 × 32 × 17 cm \ 18.9 × 12.6 × 6.7 in
Laptop Fit: Fits up to a 16" laptop

S5 Backpack Version
Includes the S5 expandable travel backpack only. Designed for short trips, weekend travel, and one-bag packing with flexible 27–40L capacity.

S5 + M01 Vacuum Compression Bag Version
Includes the S5 backpack and M01 20L powered vacuum compression bag. The M01 helps compress bulky clothing to create more usable packing space inside the backpack, making it better suited for longer trips or heavier packing needs.

S5 + M02 Vacuum Compression Bag Version
Includes the S5 backpack and M02 25L vacuum compression bag. The M02 can be powered by a phone or power bank, helping compress clothing and maximize packing space without adding another built-in battery-powered device.

Shared Materials & Specs

Capacity: Expandable 27–40L
Carry-On Fit: Designed to meet most airline carry-on size requirements
Main Fabric: Thickened nylon fabric with waterproof coating
Zippers: SBS zippers
Interior: Laptop compartment, clothing section, privacy pocket, waterproof toiletry pocket, and organized storage sections
Exterior Protection: Water-resistant finish for light rain and daily splashes
Carry Style: Backpack / travel carry
Best For: Weekend travel, business trips, short travel, one-bag packing, and airport carry-on use

Enjoy free shipping on all orders.

Most US orders arrive in 3–7 business days.
HI, AK, Canada, and European countries: 7–14 business days.

Not satisfied? We accept returns within 30 days of delivery.

Shipping Policy
Refund Policy

We provide a 3-year free repair for damages caused by product defects or normal use (not human factors).

If you experience any product quality issues, please contact us promptly at zero@reeyeeus.com.

S5 Travel Backpack 40L

S5 Travel Backpack 40L

$99.00 Regular price $129.00

Features

Business Travel Backpack for Short Trips


A clean, structured travel backpack designed for business trips and short getaways. Carry your work gear and travel essentials in one streamlined bag.

Expandable 25L–40L Capacity


Keep it compact at 25L or expand to 40L when you need more room. Flexible storage for overnight stays, business travel, and multi-day trips.

180° Suitcase-Style Opening


Opens flat like a suitcase for easier packing and faster access. Organized compartments keep clothes and travel essentials neatly separated.

Dedicated 15.6" Laptop Compartment


A separate laptop compartment keeps your device protected and easy to reach, making the S5 a practical laptop backpack for business travel.

USB & Type-C Charging Ports


Built-in USB and Type-C ports make it easier to charge your phone while traveling. Keep your power bank inside the backpack and stay connected on the go.

Water-Repellent & Durable Fabric


Made with abrasion-resistant, water-repellent fabric to help protect your gear from light rain and everyday wear. Easy to maintain and built for frequent travel.

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More Information


  • 5 stars: 667 (75%)
  • 4 stars: 124 (14%)
  • 3 stars: 59 (7%)
  • 2 stars: 20 (2%)
  • 1 star: 18 (2%)
O
Olivia J.
Best bag

I've had this bag for over a year and have traveled with it at least 15 times by air. I've flown multiple airlines and it fits under all their seats. Love all the pockets and the fact that you can tighten the bag with the straps to make it smaller. My only suggestion to the manufacturer is to add a waist strap for more support. I'll definitely keep using this bag until it's worn out.

O
Olivia M.
Best travel bag

Absolutely great bag, especially if you over pack like me. The compression bag works like a charm and it 100% fits under the seat no problem. I paired it with the suitcase and they are meant to be together.

A
Amelia W.
Personal item backpack

I am getting ready to be traveling a lot with just a carry-on in a personal item and this backpack came highly recommended. While I have not used it for travel just yet, I'm very impressed with the size how much it can fit how comfortable it is how portable it is. High-quality material and zippers and straps. This is definitely a high-performance backpack that will last me a long time.

A
Ava J.
Great backpack!!

I use this everyday since Ive bought it and have used it as a travel backpack too, fits all my stuff for a 3-4 day trip and the only thing I have to carry on a plane, the everyday use is also great and has held up great

M
Michael S.
No power supply

Good backpack, however, I was under the impression that there was a power supply in the backpack. There is only a USB cable.

M
Michael M.
A Perfect Travel Companion

This backpack has been a standout on my recent trips. It sits securely on top of my carry-on, looks sleek, and handles airport chaos without issue. The pockets are well-designed, the straps stay comfortable, and it holds way more than it appears. A great blend of style, durability, and travel-friendly design.

J
James A.
Premium materials, well-made

This was my first premium backpack, and so far it's been worth it! I bought it for airline travel, but since I haven't taken it on a trip yet, I did a ��practice run�� by using it as a commuter bag for a few days and packing it similarly to how I would for a flight.

Pros:
- Feels well-made and high quality; looks sleek and professional.
- Waterproof, not just water-resistant. It stayed dry even when the bus stop was covered in snow.
- Lots of pockets; I still haven't used them all.
- The vacuum seal held up well �� I only tested it for about 24 hours, but it didn't leak and it was very easy to use.
- The back feels more breathable than the other two backpacks I tried, thanks to the honeycomb webbing under the back padding and the airflow channel down the middle.
- The different sections (the fleece-lined laptop compartment, the main clamshell area with vacuum compression, the waterproof toiletry compartment, and the front document section) make it easy to stay organized.

Cons:
- It's not especially light, so it may not be ideal if you just want an everyday bag.
- It's very easy to overpack, and the weight distribution system lets you do that, so if you're trying to carry less, this bag won't really help with that.

I'm very happy with this purchase!

C
Charlotte J.
great quality

Good quality, lots of pockets, nice padded area for laptop, stylish, comfortable strap

M
Matthew J.
Great size comparable to a carry-on

Finally a size that appears to compare to the size of a hard side carry-on. I haven��t used it yet. Nevertheless, the zippers feel strong. The material appears to be durable. The storage capacity appears to be that of a carry-on and expandable to 40L gives you options for more if necessary.

J
John M.
Sturdy back pack

Sturdy back pack. Material feels like it will last a long time. The strap on the backpack allows easy placement to attach on your roller board suitcase carry on so you don't have to lug a heavy item on your back and roll a suitcase at the same time.Plenty of room to pack everything I need for trips as I travel a lot.

D
Daniel T.
Quality materials, thoughtful design

I originally bought this bag for my wife, but she didn't really like it, so I ended up keeping it for myself �� and it suits someone like me who travels for business often. The exterior is clean and structured without being flashy, and the design is excellent.

D
Daniel J.
Great for Reducing Need for Using Overhead Bin

Good, quality bag. I have used on 2 trips and was able to stow under seat. Avoiding any overhead bin space issues.

M
Mia L.
Love it!

Love it. There are so many capartments. I love the fact that I can fit everything that I need to in it . So far it is super sturdy.

O
Oliver T.

The fabric is durable and rainproof, the structured business design looks professional, and the capacity easily fits a 3‑day trip.

D
Daniel M.
Highly recommend purchase.

I finally was able to travel with the bag. I highly recommend. It's nice and to have a place for your water bottle. It's nice to lock the zipper. I was able to fit a lot of stuff in the bag. It also fits in the overhead bin or under the seat.

R
Robert G.
Really impressed with the quality and compression feature

To be honest, I was skeptical about the price of this backpack, but after receiving it and using it on a few trips, I really started to like it. The whole bag looks sleek and refined, with enough structure that it almost feels like a small suitcase. But what really sold me was the vacuum compression feature. It actually works, lets you pack more than a normal backpack, and still doesn't feel bulky. It also feels very reliable. The zippers are sturdy, the structure holds its shape well, and it feels like it will last a long time.
Overall, I'm really glad I bought it. If you're on the fence like I was, it turned out to be a very solid travel backpack.

E
Emma M.

The material is excellent, the design is practical, and the large capacity makes it a great birthday gift—my dad loved it.

L
Lucas T.

It feels a bit heavy when carried by hand, but much better on the back. Very spacious and suitable for short business trips.

I
Isabella W.
It is big

I have had many backpacks, but this one is huge. It is the size of two standard backpacks. It is made of the durable nylon material and all the seams are strong. All of the zippers are high-duty and open and close easily. There are plenty of pockets to help organize all the gear I would use on a weekend trip. Since this is larger, I can pack more gear and don��t have to take a second bag. It is too big as a carry-on for airline travel, but it is good for a road trip and backpacking on a good trail. It is easy to use and comfortable to wear. It is an overall good backpack.

O
Oliver B.

The capacity is huge, the black color is stylish, and it’s a great choice for business trips or travel.

A
Ava M.
Off we go!

Look no further. This backpack is amazing �� not too big and not too small. It's very well built, the compartments are laid out sensibly, and the clamshell design makes it easy to pack and go. Highly recommend.

R
Robert G.
Great for maximizing space and lightening luggage

This bag is a good option for maximizing the volume of airline luggage and lightening the load. Most of my luggage is too thick or long to fly internationally as checked baggage. This bag is very close to limits and just over limits for some of the airlines so be sure to check the size restrictions. I would not check this bag without using additional straps but for carry on, it works great. Be aware it isn��t up to a quality level that will last a lifetime. But it should last me a few years of flights.The bag has lots of pockets and I really like how they are arranged. Some bags do a little better with the compartment that has smaller pockets to hold items in place - If the bag is turned where those are upside down, the items are going to fall out. But I'm fine with that. The multiple compartments are very useful for storing electronics and not having wheels and a pull rail maximizes the interior space. The bag is also only a couple of pounds - I own no other luggage that isn't 3 times the weight of this. That's lots of clothes for International flights where they weight carry on.I don't recommend to overpack this bag although the new bag hasn't had any failures so far.

FAQ


Popular questions from our customers

  • The S5 expands from 25L to 40L. Keep it compact for a lighter trip or expand it when you need more space for longer travel.

  • The S5 option includes the backpack only. S5 + M01 includes the backpack and an M01 vacuum compression bag to help create more usable packing space for longer or heavier trips.

  • The S5 includes dedicated space for a laptop, clothing, private items, toiletries and other travel essentials, with a wide-opening main compartment for easier packing.

  • It is designed with carry-on travel in mind, but airlines set their own size and weight rules. Please check your airline’s current allowance before you fly.

  • Use the separate water-resistant pocket to keep toiletries, damp items or bottles away from clothing and other main-compartment items.

  • No, this backpack does not have a dedicated pocket for shoes.