This beauty is made from powder-coated and insulated stainless steel, so it won't hold or transfer any flavors from drink to drink. There's no easier way to keep cold beverages on-hand, literally! TempShield Insulation Hydro Flask's technology eliminates condensation and keeps beverages cold up to 24 hours and hot up to 12 hours. 18/8 Pro Grade Stainless Steel Won't retain or transfer flavor. Color Last Powder coat for non-slip grip and lasting color. Volume 710mL Flex Straw Cap Leakproof, insulated, and easy to use with one hand, this is Hydro Flask's easiest lid to access. Not intended for hot beverages.