The keep your cool yoga kit includes a stylish 4mm yoga mat with matching water bottle. The premium 4mm yoga mat is extra-thick for added cushioning and provides a textured, "sticky" non-slip surface so you'll stay on the mat! also, features a 17 oz. Bpa-free water bottle with 18/8 double walled stainless steel and a no-leak vacuum seal, non sweat construction, and easy-grip design that keeps your beverage cold for 24 hours or hot for 12.