Ynport Folding BPA Free Silicone Water Bottle FDA Approved Collapsible and Leak Proof Container for Traveling, Camping, Hiking, Walking, Running 520ml BPA-FREE & FDA APPROVED: Food-grade premium quality anti-bacteria materials. Thick Silicone folding and Manufactured with leak proof sealing technology. FlEXIBLE and EASY to Use Watertight Container; When Empty, Folding 1/4 of it's size and Secure with Accessory Loop; Store in a small space, especially good for airplane travel; LARGE OPENING FOR EASY CLEANING: Inner surfaces easily accessible for easy cleaning and drying. For cold water, ADD ICE CUBES directly from a scoop or refrigerator ice dispenser. Keep Hands Free while Exercising, Shopping, or at a Sporting Event or Concert. 100% MONEY-BACK GUARANTEE: Buy with confidence with our no-questions-asked 60-DAY FULL REFUND Guarantee.