JR Recovery2Fitness stainless steel 1 Litre bottle is vacuum insulated helping to keep your bottle cold for 24 hours as well as being double walled helping keep your drink hot for 12 hours. We use a food grade stainless steel meaning it is resistant to oxidation and corrosion. Fuse bottles include an infuser that can be used. With all purchases of our bottles we donate 5% to help the effort in removing plastic from our oceans and rivers.