The CamelBak Straw Tumbler 20oz is the perfect cup to house your favorite summer beverages, whether out on a cross-country road trip or a full day on the water. You can always count on the Horizon Straw Tumbler to keep your beverages frosty cold, plus the straw lid adds splash-free convenience and helps prevent the use of wasteful single-use straws. Like all of our drinkware, you can count on the durable construction to last for season after season. It features spill-resistant Tritan straw lid, as well as the non-slip silicone base. The Tritan straw is shatter, taste, and odor resistant. It is constructed with double-wall 18/8 stainless steel material and sweat-proof vacuum insulation in between. This 20oz straw tumbler comes with the durable powder coating and it is BPA-free.