Waterproof Sports Duffel Bag, Personal Item Travel Bag 15.3" x 9.4" x 9.4" - Solid Base - Built for Wet, Muddy Gear - Multi-Use Swimming, Gym, Soccer, Camping, Triathlon Transition Bag - Black

I used a reusable shopping bag until I bought this bag. It's great for all my gear and I like that I can attach a 2nd one to it.

Gave it as a gift and what I have been told it is great for holding her gear. An aero helmet is tight with all the gear but it fits. The build quality is excellent and the seams are heavy so wear quality will be good

Great bag. Fully waterproof. It would have been better if slightly bigger

The bag is awesome the shoulder strap is kind of doodoo. The water proof is hardcore. Left my window on my vehicle open and had a freak rain storm clothes inside were bone dry.

If you are in the need for a great system / bag, then these are great. They are pricey and you may find another solution might fit your needs just as good, but for much cheaper. I am thinking of the trunk organizer things that have compartments ... anyway, the interior waterproofing is great and the windows on the ends combined with colors will allow you to store specific gear as needed. The 20l size is good, but I do with it had lust a bit more lingth, like maybe a 24 or a 28l size. All in all, as others have mentioned, the ability carry them and organize them together is awesome and will make your various sports pursuits much easier to organize. The construction of the bag is robust, but not a tank. So be sure to have some care for the gear. Keep in mind that you wont want to abuse these ...

I bought this thinking it was the bag (as it showed in the description and photos), it turned out to be just a tag to hang on the bag. Definitely disappointed.

I think the selling point of this bag is that you can buy multiple and zip them together -- that way you can setup for multiple sports, activities, etc -- and still carry and organize together. They do feel a bit pricey for what you get -- and buying 3 -- is an investment. They are well built, square by design, and a few nice features like the mesh front pockets.