The 30A AVEX Brew Insulated Pint Glass guarantees that you'll enjoy every ounce of your favorite beer. The 20 oz. insulated Brew features an integrated bottle opener on the bottom of the cup and a rubber pad to prevent clanking and slippage. It's vacuum insulated with stainless steel construction with a 4-hour cold / no sweat design. There's also a removable silicone color ring designed to help you keep track of your cup.