Take your favorite wine, whiskey, or cocktail on the go with EcoVessel® Port 18/8 Stainless Steel 10 oz. Tumbler. The seamless tumbler features double wall vacuum insulated construction with copper lining to maintain the temperature of any drink for hours and is an elegant and functional alternative to traditional cocktail and wine glasses. It features a push-in slider lid to keep your favorite drink safe and clean and the bottom silicone ring provides soft landings and protects tabletops. Take the Port Tumbler insulated wine cup on your wine tasting adventures or simply enjoy it while relaxing at home. Through their partnership with 1% for the Planet, EcoVessel donates a minimum of 1% of all sales to various environmental nonprofits. FDA compliant and BPA Free.