Body and lid made of rust-resistant 304 stainless steel. Cool Riser Technology® improves cooling performance by elevating from hot surfaces. Ultratherm® insulation in body and lid keeps contents cold. Convenient stainless steel bottle opener. Wide, stainless steel swing-up side handles with comfort grips. Stainless steel lid hinges and latch for maximum durability. Recessed, triple-snap drain plug.