TRIPLE INSULATION: Food grade 18/8 stainless steel, The unique ThermoArmour technology inside this insulated water bottle keeps beverage cold up to 24 hours and hot up to 12 hours.stainless steel that's BPA-free, reusable, and safe for all. It's rust-proof, and free from oder retain. Liquid can be fresh in its best taste for a whole day.
