Maximize your hydration efficiency with the Reduce Cold1 Tumbler, a high-capacity vessel designed for extreme thermal performance. This professional-grade tumbler is constructed with dual-wall vacuum insulation and 18/8 food-grade stainless steel, ensuring your drinks stay chilled for a full two days. The sweat-proof design prevents external condensation, protecting your surfaces and ensuring a secure, dry grip at all times. Designed for versatility and convenience, the Cold1 features a patented 3-in-1 lid that adapts to your drinking preference—whether you prefer using the included straw, sipping from the opening, or gulping for maximum flow. Despite its substantial 48oz capacity, the tumbler utilizes a tapered base specifically engineered to fit into most standard vehicle cup holders. Equipped with an ergonomic, easy-grip handle and internal "hydration goal" markings, this BPA-free tumbler is a functional and rugged companion for long shifts, travel, and intense workouts. Key Features: 48-Hour Cold Retention: Superior vacuum insulation keeps ice-cold beverages chilled for up to 48 hours. Extra-Large 48oz Capacity: High-volume design includes internal markings to help you accurately track your daily hydration progress. Patented 3-in-1 Lid: Innovative lid design offers three distinct ways to drink: sip, drink, or gulp. Cup Holder Friendly: Tapered slim-base engineering ensures this large-capacity tumbler fits securely in standard car cup holders. Premium & Safe Build: Crafted from 18/8 stainless steel and BPA-free materials; fully dishwasher safe for effortless maintenance.