BPA-free Stainless Steel: The bottle is made of 304 food-grade stainless steel material, which is highly rust resistant and it will not retain any unwanted flavors. Anti-corrosion and anti-oxidation. Stay healthy with our bpa-free bottle. The wide-opening mouth provides you with easy ice cubes or fruit additions. The special thread design on the lid makes it easy to open, while at the bottom it better secures the bottle and prevents slipping. Metal hook for easy and convenient carrying. You can bring it to any adventure. A stylish and sturdy sports water bottle is made of 18/8 stainless steel material, which is durable and rust-proof. Stay Hydrated: Take it anywhere to stay hydrated. Leak-proof Design: A specially designed stainless steel cap and silicone ring provide a strong seal, whether it is tilted or inverted, with no leakage. Easy to clean, keeping your drink free of odor and unwanted taste.