Premium Material: Our insulated water bottles are made of food-grade stainless steel (18/8), known for its durability. The powder coating process makes them virtually indestructible, scratch-resistant, and effectively controls temperature. Superior Insulation: Our stainless steel water bottles feature a copper-coated structure that helps maintain the bottle's temperature. It keeps drinks hot for 12 hours and cold for 24 hours. Safe, convenient, and easy to carry. Eco-friendly and BPA-free: We solemnly promise that our products are BPA-free and meet FDA standards. Durable and not disposable. It's the perfect choice for your daily commute. Bring our insulated stainless steel water bottle with you to stay hydrated and enjoy every sip. Leak-proof and shatter-proof: High-quality materials make this stainless steel water bottle extremely robust, absolutely leak-proof, and shatter-proof. Perfect for cycling.