💧【HEALTHY AND SAFETY】--This collapsible water bottle is made of medical grade (better than food grade) BPA-free silica gel and non-toxic, odorless material; approved by FDA in the U.S. Made from 100% medical-grade material. 💧【HIGH CAPACITY】--Large capacity silicone water bottle of 750 ml, and only 155 g in weight; allows you to hydrate your body at any time; enjoy the outstanding design and convenience of this bottle compared to most products on the market. A check valve design prevent liquid to go out even if you hold it upside down. 💧【LEAKPROOF】--Wide-mouthed (63 mm) design makes it easy to clean the interior or add water and ice; the leak proof one-button switch opens the cap easily; the lock ring prevents the bottle from accidentally opening. 💧【COLLAPSIBLE】--collapsible water bottle silicone allowed to be folded to 1/3 of the size for easy transport. Retainer band for clip-on and storage, stand stable even with less water. 💧【WIDE TEMPERATURE】--Endures a wide range of temperatures from -40℃ to 100℃; use with refrigerated or boiled liquids; crash proof and anti-collision design makes it a perfect companion for bicycling, running, swimming, outdoor activities, extreme sports, and more.