Say Hello to the Coolest Cup Ever! , Your daily go-to drinking cup just got more stylish! Inspired by nature, Corkcicle's Walnut Vacuum Tumbler features a warm, woodgrain pattern and sleek, matte finish. Crafted from stainless steel with propriety triple insulation, this vacuum-sealed tumbler keeps cool drinks ice cold for 9 hours or longer and hot drinks warm for up to 3. Stays cold even longer with drinks containing ice - even out in the sun. , , It is full of small yet awesome delights - with easy-grip sides, a non-slip silicone base, and shatter-proof, drink-through lid, you'll enjoy easy-going, spill-free sipping every-time.