The EcoVessel Boulder Insulated Water Bottle is a flagship thermal hydration vessel designed to keep beverages hot or cold all day long. Made from food-grade 18/8 stainless steel, it features TriMax® triple insulation technology for vacuum insulation that keeps iced liquids cold for up to 40 hours and hot for up to 12 hours. The Boulder includes a removable stainless steel strainer for tea and fruit infusion, which also functions as an ice dam. It has a multi-lid top with a textured grip for easy opening and a wide opening for filling. Enjoy comfortable drinking with the new soft silicone lip. The interchangeable lid system allows for use with coffee and flip straw tops. The two-piece lid has an integrated carrying strap and a secure leak-proof seal. A new protective silicone base offers added protection. This bottle won't sweat and fits most cup holders, making it ideal for any activity, from yoga to hitting the trails, or simply for daily hydration at your desk or while running errands. Available in various durable powder-coated finishes or stainless steel.