22oz of pure hydration! We asked Specialized, the world's leader in water bottles, to make us a custom bottle featuring our blue and orange stripe. Purist shields the bottle from odor, staining and mold build up, so all you taste is the water. Our custom bottle uses the MoFlo Cap which is easy to open, effortless to use and leak proof when closed. The Purist bottle is made of food-safe LDPE # 4 plastic. It is BPA-free and top-rack dishwasher safe.