This 12 oz rambler is a must-have for anyone on-the-go. Its double-walled vacuum insulation keeps drinks cold for up to 9 hours and hot for up to 3 hours. Made with food-grade stainless steel and featuring a splash-proof sliding lid, this mug is both durable and convenient. With an ergonomic easy-grip handle and powder-coated finish, it's perfect for any adventure.