Description The NAYAD® Traveler 64 oz Stainless Double-wall Bottle with Twist-Top Spout is your perfect companion for all-day hydration! Constructed of 18/304 rust-free stainless steel construction with powder-coated matte finish, the Traveler is double-wall insulated with a 100% BPA-free ABS plastic wide-mouth lid featuring a twist-top spout for easy drinking. Copper-lined to keep beverage hot for up to 10 hours and cold for up to 20 hours. Hand wash only. FDA certified.