Thermal technology maximizes temperature retention, keeping cold drinks chilled for up to 11–24 hours and hot beverages warm for up to 7 hours.Ergonomic Side Handle: Designed with a sturdy, comfortable-grip handle for secure carrying, even when the tumbler is completely full.Cupholder Compatible: Features a tapered narrow base that effortlessly fits into standard vehicle cup holders.Splash-Resistant 3-Way Lid: The versatile rotating lid offers three distinct options: a silicone-sealed straw opening, a wide mouth for direct sipping, and a full-cover top to prevent spills.Premium Stainless Steel: Constructed from food-grade, rust-resistant stainless steel that won't retain or transfer flavors.