I’m also selling the Kanken pictured, and other accessories in other listings! Shown holding a 32oz Owala FreeSip with bottle boot on (the boot makes it a little harder to fit, so a slightly larger bottle without a silicone boot on the bottom should fit as well) (By the way, this also fits the pockets on the large size Doughnut Macaroon backpack I’m selling. I think it would fit the pockets of their standard size as well, but I don’t have one to test.) Note, you can’t really wash this (shouldn’t immerse in water), but I think spot cleaning with a damp cloth and then drying is recommended if you need to clean it.