The CamelBak® Straw Tumbler 30oz 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.  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 30oz straw tumbler comes with the durable powder coating and it is BPA-free.