THE CLASSIC COLLECTION - The original. The classic. Whether you want to make a statement or give off a cool, modern vibe, there’s something for everyone. TRIPLE INSULATED STAINLESS STEEL KEEPS DRINKS COLD FOR 9 HOURS & HOT FOR 3 - By the pool, at the office, in your car, wherever - Tumbler keeps your favorite drinks icy cold or piping hot for hours. ERGONOMIC FLAT SIDES; NON-SLIP, SILICONE BOTTOM - Our patented, easy-grip sides ensure Tumbler stays securely in your hand. The silicone bottom is designed to prevent it from sliding and spilling. SHATTERPROOF LID - Our sip-through lid has a built-in slider to ensure your drink stays inside between sips. The detachable silicone gasket offers leak-resistance and easy cleaning.