One look at this awesome tumbler and they'll be hooked! Made of acrylic, this 20 oz. drinking glass is BPA-free and features include a clear outside wall, colored inside wall and a color matching straw and lid. The straw can be removed and the lid has a slide-lock mechanism to prevent spilling or leaking. It's also designed with double-wall insulation, which will keep beverages at optimal temperatures for longer periods of time. Customized with a logo or company name, these glasses will make your next advertising campaign a brimming success!