The Hydro Flask Wide Mouth Coffee 20 Oz Pineapple is made of durable 18/8 professional-grade stainless steel. It features a wider opening for faster fill. The TempShield™ double-wall vacuum insulation keeps water ice cold for up to 24 hours and hot for up to 12 hours. It features a Color Last™ powder coat which is dishwasher safe. It is BPA-Free and Phthalate-free and includes a lifetime warranty. It is compatible with the Hydro Flip™ Lid and wide mouth straw lid.