【Versatile Drinking Design】This Stainless Steel Water Bottle features a versatile design that offers three drinking modes. This Gym Bottle includes a straw mode with a 9mm folding straw mouth, a direct drinking mode with a 16.4mm round mouth, and an open-mouth mode with a 53mm wide mouth for brewing and cleaning convenience. 【Thermal Insulation Design:】With double-layer vacuum insulation, This Water Bottle keeps beverages warm for up to 6 hours above 152.6°F /67°C and cold below 46.4°F /8°C. The inner coating ensures vacuum stability for excellent insulation and cooling performance. The gym bottle's dual-layer vacuum technology and 6-layer heat-lock structure, maintaining your drink at the ideal temperature. 【Secure Leak-Proof Design】 The metal water bottle includes silicone sealing rings and stoppers for both the cap and the stopper. The external lid has an anti-slip texture for a comfortable grip, while the integrated pressure relief valve prevents accidental splashes. The 3mm thick silicone base enhances wear resistance and stability for added safety during use. 【Stylish and Portable Design】This double-wall water bottle comes in various colors and trendy designs, offering a unique and personalized charm. The TPE rubber handle ensures a comfortable grip with its ergonomic design. The integrated lid and handle make it convenient for travel, adding both practicality and style to the insulated water bottle. 【International Quality Certification】This Insulated Water Bottle made with food-grade PP material for the spout, FDA and EU-approved. The 18/9 stainless steel construction ensures corrosion resistance and beverage freshness. Insulated Water Bottle's nano-polished interior help cleaning. Matte painted exterior is durable and comfortable to hold.