MEWAY’s 30oz tumbler is transparent, double-walled, and sold in a four-pack. The clear PETG material creates that suspended look for iced coffee or a bright cocktail, but it serves a practical purpose: the air gap between the walls keeps cold drinks cold and hot drinks hot without sweating on your hand. At 30 ounces, it holds a full blender batch of smoothie or a large iced tea without needing a refill.

The tumbler handles daily use well. PETG is durable and BPA-free, though it’s not shatterproof—dropping it on concrete can cause cracks. The wide mouth fits most cup holders and standard ice cubes, and the transparent design lets you see your drink level at a glance. It works equally well on a desk, at the gym, or on a patio.

The four-pack covers a household or a week of rotation. Colors are solid and modern, with the “Sand” theme offering a neutral, matte-like finish. If you want a clear, large-capacity cup that doesn’t sweat and looks clean, this is a straightforward choice. Just handle with care on hard surfaces.