Product information ecococoon drink bottles are made from 18/8 food-grade stainless steel, double-walled vacuum insulated, BPA free and come in a range of sizes, colours and illustrated designs for all ages. ecococoon – The Ultimate in Stainless Steel Drink Ware * Leak-free bottle! * Spill-proof with our Cocooncap™. * Vacuum insulated - keeps cold drinks cold up to 24 hours and hot up to 12 hours. We recommend the screw top lid for hot drinks. * Condensation free. * Hygienic and easy to clean. * No teeth pulling to open. * No twisting to drink. * 18/8 stainless steel and no taste taint. * BPA free. 350ml Volume capacity. Base Diameter 7.0cm Height 18cm with Cocooncap™. Our cocoons fit most beverage holders.