Come and Check Our Branding Solutions.This collapsible water bottle is made of food grade grade BPA-free silica gel and non-toxic, odorless material;.Large capacity water bottle of 750 ml,Foldable and flexible, saves space when it is rolled up and makes it portable for outdoor use; wide mouth design makes it easy to add water and ice cubes or clean the interior; the pop-up lid makes it convenient to drink; The innovative air return valve makes it easy to expand and stands straight, even when it's empty or contains only a small amount of liquor; the stainless steel buckle prevents the bottle from accidentally opening.The leak proof silicone seal on the flip cap ensures the bottle is well-sealed and no spill; Pls check inventory and detailed info before placing your orders.