The TYESO AURA POP Tumbler is a lightweight ceramic-coated insulated straw tumbler with a handle, pop-up straw, and cup-holder friendly base. Designed as the youthful, high-energy version of the AURA Tumbler, it comes in 30 oz and 40 oz sizes for everyday hydration, commuting, work, and travel. Ceramic-coated 304 stainless steel inner wall: anti-corrosive, odor-free, and easy to clean. Left- and right-hand friendly lid: tighten the lid from different angles to align the straw opening for either hand. One-handed opening with a pop-up straw for quick sipping on the go. Cup-holder friendly tapered base fits most car cup holders for commuting and daily travel. Double-wall vacuum insulation: hot water at 100 C stays at or above 60 C after 6 hours; cold water at 4 C stays at or below 6 C within 6 hours. Lightweight body: 396.5 g for 900ml / 30 oz and 474 g for 1200ml / 40 oz. Inner and outer 304 stainless steel, BPA-free lid materials, powder coating, and leak-proof construction. Specifications Capacity: 900ml / 30 oz; 1200ml / 40 oz Body: 304 stainless steel Interior: 304 stainless steel with ceramic coating Lid: PC resin, PP resin, POM resin, silicone Handle: ABS resin Straw: PP resin and silicone Finish: Powder coating