Hydro Flask's 40 oz water bottle is great for those who want just a little more of their favorite drinks. When you need that extra 8 oz of refreshing goodness, Tillys' Hydro Flasks have you and your thirst covered. And if that wasn’t awesome enough, our Hydro Flasks come in a wide assortment of brilliant colors to choose from. Need something a little smaller in size and volume? Check out Tillys’ 32 ounce Hydro Flask water bottle in all of your favorite colors, and don’t forget to stock up on all your favorite Hydro Flask lids plus bottle brushes, straw tops and more.