Flex Travel Gym Bag
Flex Travel Gym Bag
The ultimate fusion between function and style
The ultimate fusion between function and style
Flex Travel Gym Bag
Flex Travel Gym Bag
Flex Travel Gym Bag
Flex Travel Gym Bag
Side #1: Deep pockets for storing bands
Side #1: Deep pockets for storing bands
Side #2: three pouch pockets offset from the bottom
Side #2: three pouch pockets offset from the bottom
Front: organizational pockets for personal items
Front: organizational pockets for personal items
Built-in lock & key tether
Built-in lock & key tether
Hanging hook for vertical hangs
Hanging hook for vertical hangs
Deep water bottle pocket that extends inward
Deep water bottle pocket that extends inward
Pocket can hold large shakers
Pocket can hold large shakers
Hook bar for other gym accessories
Hook bar for other gym accessories
Back zippered pocket stores additional fitness gear
Back zippered pocket stores additional fitness gear
Includes removable water-resistant bag for sweaty clothes
Includes removable water-resistant bag for sweaty clothes
Fits large shoes
Fits large shoes
Aerated shoe pocket with Monolite Mesh
Aerated shoe pocket with Monolite Mesh
Shoe pocket tucks away when not in use
Shoe pocket tucks away when not in use
Tuck away the shoe insert when not in use
Tuck away the shoe insert when not in use
Discreet AirTag pocket for tracking your bag
Discreet AirTag pocket for tracking your bag
Grippy handles for easy carry
Grippy handles for easy carry
Carry on shoulder
Carry on shoulder
Bonus: Doubles as a travel duffel
Bonus: Doubles as a travel duffel
Slide onto handles of carry-ons
Slide onto handles of carry-ons
Side pocket can hold an AirPods Max case
Side pocket can hold an AirPods Max case
Two colorways
Two colorways
Waxed Canvas
Waxed Canvas
Ballistic nylon
Ballistic nylon
Flex Travel Gym Bag
The ultimate fusion between function and style
Flex Travel Gym Bag
Flex Travel Gym Bag
Side #1: Deep pockets for storing bands
Side #2: three pouch pockets offset from the bottom
Front: organizational pockets for personal items
Built-in lock & key tether
Hanging hook for vertical hangs
Deep water bottle pocket that extends inward
Pocket can hold large shakers
Hook bar for other gym accessories
Back zippered pocket stores additional fitness gear
Includes removable water-resistant bag for sweaty clothes
Fits large shoes
Aerated shoe pocket with Monolite Mesh
Shoe pocket tucks away when not in use
Tuck away the shoe insert when not in use
Discreet AirTag pocket for tracking your bag
Grippy handles for easy carry
Carry on shoulder
Bonus: Doubles as a travel duffel
Slide onto handles of carry-ons
Side pocket can hold an AirPods Max case
Two colorways
Waxed Canvas
Ballistic nylon
back to left

Flex Travel Gym Bag

 

Two-in-one duffel for gym or weekend adventures
 

The Flex Travel Gym Bag is a thoughtfully organized 25-liter duffel with a place for everything you bring to the gym. Dedicated pockets keep your workout gear, gym essentials, and large shaker bottles organized. A ventilated shoe compartment and removable laundry bag keep dirty gear separate from clean clothes.

Designed with input from over 1,400 fitness enthusiasts, the Flex is packed with practical details like a tether for your gym lock and keys, hooks for hanging in gym lockers, and non-slip handles that stay comfortably on your shoulder.

Perfectly-sized for the gym yet versatile enough for overnight trips and weekend getaways, the Flex is handcrafted in San Francisco from rugged ballistic nylon or waxed canvas.

 

 

Material:

  • 1050 denier black ballistic nylon or 14.7 oz. waxed canvas
  • More details here

Dimensions & Weight:

  • One size: 17.5" (l) x 8-10" (w) x 9" (h); 2.2 lbs.

    44.45 cm (l) x 20.32-25.4 cm (w) x 22.86 cm(h); 998 gm.

    Volume - 25 liters

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  • 25-liter capacity is right-sized for gym days, overnight trips, and weekend getaways.

  • Three compartments provide organization: large main compartment with five interior pockets, large front pocket with additional internal pockets, and a rear zippered compartment.
  • Dual-sided waterproof zippers in a U-shape grant wide, full-view access to main compartment.
  • Gold water-resistant liner ensures instant visibility of contents.

  • Ventilated Monolite™ shoe compartment keeps dirty shoes separate and tucks away when not in use.

  • Large, zippered side pocket holds a water bottle and a protein shaker.

  • Long, non-slip handles stay comfortably in place on your shoulder.

  • Rear suitcase passthrough slides securely over rolling luggage.

  • Metal D-rings attach to an optional shoulder strap.

  • Rear zippered pocket stays accessible even when the bag is hanging.

  • Built-in nylon loops let the Flex hang vertically in most gym lockers.

  • Discreet AirTag pocket hidden inside the shoe compartment helps you keep track of your bag.
  • Tethered carabiner keeps your gym lock and keys secure and easy to find.
  • Removable, water-resistant laundry bag separates sweaty clothes from clean gear.

A COMMUNITY-DESIGNED PRODUCT
This product was designed with customers who gave input from idea to production. See the process here. 

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The Flex Travel Gym Bag comes in one size and holds a variety of items one uses for the gym. Some example: 

 

  • Extra large shoes can fit in the dedicated show pouch.
  • A shaker, a large water bottle, or two waterbottles can fit in the waterbottle pocket. 
  • Personal items and toiletries can fit in the organizational pockets. 
  • Wrist wraps, hand grips, bands, ropes, and other gym gear have room in the main compartment.
     

When used as a travel bag, the water bottle pocket can hold headphones and gear pouches. 

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  • Domestic: USPS & FedEx. Details.
  • International: 4-5 business day delivery. Country duty/tax calculated at Checkout. Details.
     

Customer Reviews

Based on 17 reviews
94%
(16)
6%
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A
Austin

It is ptrliminarily, excellent. well made, stands nicely, perfect size for someone who doesn't pack much.

A
Anonymous (California, United States)
Beautifully made gym bag

Beautifully made gym bag !

V
Vivianne I. (Virginia, United States)

Excellent customer service, quick response and notifications was great. Purchased flex travel gym bag for son’s birthday. He loved it.

N
Neil R. (California, United States)
So good I immediately bought the Backpack too

This is my second bag from them. My first messenger bag is over 10 years old and still going strong, the leather has aged beautifully. I bought this gym bag and used it for a trip to Yellowstone. The shoe compartment kept my muddy shoes completely separate from my wedding clothes, which were also in the bag.

Air travel was easy. The bag is small enough to fit in the overhead bin even when the bins were already full, and the flight attendant didn’t make me check it, even though I was also carrying a backpack and a carry‑on.

After the trip, I ended up buying their backpack as well. Great quality, great look, and a great buy.

R
Robert B. (California, United States)
The Perfect Weekender

This bag suits me to a tee for a weekend getaway. The quality is top-notch as with all Waterfield products.

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Waterfield Designs Flex Travel Gym Bag

As Many Reviews As Possible - June 13, 2025

“I was surprised to find out how small this bag is for being 25l, but what it lacks in size, it makes up for in small storage pockets.”

Design details

THE ULTIMATE GYM BAG

Designed with input from over 1,400 fitness enthusiasts, the Flex Gym Bag has a place for everything gym goers need. Dedicated pockets keep your phone, keys, gym pass, workout gear, and large shaker bottles organized and easy to find.

 

A ventilated shoe compartment keeps dirty shoes away from clean clothes, then tucks out of the way when you don't need it. The removable laundry bag does the same for sweaty gym clothes.

 

Even your gym lock has a home: a built-in tether keeps it secure, easy to find, and away from anything it could scratch.

MADE FOR THE LOCKER ROOM

Sized perfectly to fit comfortably in most gym lockers, the Flex Gym Bag can also hang vertically from its built-in hooks when space gets tight. 

When it's time to go, grab the long, non-slip handles and throw the Flex over your shoulder; they stay comfortably in place without constantly slipping off.

EXTRA ORGANIZATION  

Customers indicated they sometimes carry personal items like a phone, keys, or a small notebook, with them on the floor. The EDC Pocket Organizer (sold separately) fits these essentials and fits perfectly in the deep interior pockets of your Flex Travel Gym Bag.  For your post workout needs, the compact Travel Light Dopp Kit (sold separately) keeps toiletries separate and neatly organized. 

You can store these complementary pouches in the Flex Travel Gym Bag so you'll always be prepared whenever you get to the gym. 

BEYOND THE GYM

More than just a gym bag, the Flex is a capable all-around duffel for overnight trips and weekend getaways. Its 25-liter interior has room for a couple days of clothes, while dedicated compartments keep shoes, toiletries, and smaller travel essentials neatly separated.

 

The wide opening and bright gold liner make packing and finding your belongings easy, and a rear suitcase passthrough slides securely over your rolling luggage.

DESIGNED BY GYM GOERS, FOR GYM GOERS

We asked over 1,400 fitness enthusiasts what they wanted in their ideal gym bag, then built the Flex Gym Bag around their feedback. See the process here.


The result is a bag full of small, thoughtful details: a shoe compartment that disappears when you don't need it, dedicated storage for your gym lock and keys, a removable bag for sweaty clothes, and built-in hooks for crowded gym lockers.

It's the kind of attention to detail you appreciate every time you use it.

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