EcoVessel® 20 ounce Boulder Bottle is better with the addition of new features including a protective silicone bumper provides protection for surfaces plus quiet set downs. TriMax triple insulated vacuum construction Stays hot or cold for hours 18/8 stainless steel BPA and phthalate Free Dual use insulated lid - Easy fill wide opening and easy to drink from small opening Removeable ice, fruit, tea strainer included to infuse your drinks with flavor and block ice. Silicone lip for drinking comfort. Sturdy flexible strap. Silicone bumper for quiet set downs. Never sweats. Hand wash. Fits most cup holders.