Silicone Collapsible Ball Water Bottle with Climbing Buckle, Drop and Leak Proof Outdoor Sports Mug, Black & White Soccer Style High Quality Material:Made of food-grade silicone, non-toxic, heat-resistant and environmentally friendly, the soft silicone material makes the mug more resistant to falls, so you can use it with confidence! Fashionable Design:This silicone water cup has a unique collapsible design, which saves 50% space after folding the soccer cup.The lid is thickened for effective drop protection. Easy to Use:Lightweight collapsible soccer mug with flexible 550ml capacity that shrinks down to 200ml.The mug comes with a hiking clasp for easy carrying or hanging on your backpack, making it an ideal mug for school, gym and outdoor sports. Leak-proof and Spill-proof:The water cup has excellent sealing, 360° rotation without leakage, the water cup is tipped and inverted without worrying about water leakage.The lid of the cup is made with a flip-top design, which can effectivel y prevent spillage.