RicoRich Double Walled Vacuum Insulated Stainless Steel Sports Water Bottles,Travel Hydration Thermoses Bottle,BPA Free, 26oz/17oz Double wall vacuum insulated stainless steel water bottle keeps drinks cold up to 24 hours and hot up to 12 hours Premium food grade 18/8 Stainless Steel inside and outside,BPA free,chemicals free Leak proof seal,no matter how hard you shake,it will never leak Sweat proof,no matter what temperature the beverage inside your bottles,the outside will always be comfortable and easy to hold Tough and durable,it is perfect sturdy to withstand many drops from cycling, walking,hiking,camping,travelling,etc <span class="a-text-bold">BPA Free, Keep Hot and Cold </span> <br> <br> <br>  This water bottle is 100% BPA free,it doesn&#039;t contain any substance harmful to human body.<br>  High quality food grade 18/8 stainless steel.No BPA, No chemicals.It will give you a crisp, clean, healthy and refreshing drinks.<br> <br>  Double walled vacuum keeps drinks cold up to 24 hours and hot up to 6 hours. <br>  The vacuum insulation about 1mm in the bottle, so it is perfect to keep drinks hot and cold.