Collapsible Water Bottle, PYRUS Travel Accessories Bottles Leak Proof for Sports Camping Hiking Cycling(Blue) This collapsible water bottle is made from food grade silicone which is free of harmful materials. This leak proof water bottle can be rolled up/folded when it is empty. The bonus clip-on carabiner allows the bottle to be secured to any backpack, bag, duffel bag or even your belt. The pop-up lid is suitable for one-handed usage and allows drinking on the move like cycling and driving. The cleaning of the sports bottle is effortless. Perfect for hiking, camping, biking, picnic,travel and sports because of sturdy. Also for your kids, who may often brake glass bottles. Camping water bottle is crazy convenivent and space-efficient, take up very little space, neat, folds up small and lightweight.