Just freeze, insert into your standard 12 ounce beer bottle and never deal with warm beer again.

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.