Duck House NFL Unisex Double Wall Stainless Steel Thermos - Medium 13 ounce double wall stainless steel thermos with flip lid Keeps beverages cold for over 12 hours, or hot for over 8 hours Easy-to-use flip lid can be opened, closed, locked and unlocked with one hand Sleek matte black finish Stainless steel double-wall construction insulates beverages Keeps drinks hot or cold for hours One-Handed easy-open cap and locking lid for extra safety