[ HEALTH ] : Size : 8.9*2.6*2.6in,550ml(18oz), collapsible water bottle is made of 100% food-grade silicone,no bad taste, free of BPA, BPS, PVC, FDA,BPA FREE,SGS, LFGB approvedĀ . [ COLLAPSIBLE ] :Silicone water battle is folded in one step , no need to roll up. Saving 50% storage space puts into the bag easily. Portable hook is convenient to carry anywhere, like outdoor indoor travel camping hiking cycling sports . [ LEAK-PROOF ] : A check valve prevents liquid to go out. Water bottle can be folded and kneaded arbitrarily, but not deformed ,hold well and never collapse. [ EASY TO CLEAN ] : Water bottle is dishwasher and soft brush safe to clean. Wide-mouthed design (remove bottle cap) allows you to throw ice cubes for cold drinking. [ WARRANTY ] : WE GUARANTEE : water bad tasted ,MONEY BACK; leak, MONEY BACK. 60 DAYS MONEY BACK FOR ANY PROBLEM . Free to contact us if you have any issue,we will get back to you ASPA.