Keep Your Drinks Hot Or Cold For Hours: Our double-walled vacuum insulated water bottle is made of 18/8 stainless steel, which is known for its excellent insulation properties. This means that it will keep your beverage cold for 24 hours and hot for 12 hours, making it perfect for all-day hydration Leak-Proof & Portable: Screw cap designed with a tight seal to prevent leaks and spills, so you can have peace of mind while you're on the go! The compact size makes it easy to put in your backpack or car cupholder, and the carrying strap ensures that you can take it with you wherever you go Food-grade Materials: BJPKPK metal water bottles are made of 18/8 stainless steel with a BPA-free lid that ensures no flavor transfer, it preserves the authentic taste of your beverages. Safe for your daily water drinking. The long-lasting powder coating is non-toxic and slip-free, also gives this cute water bottles a vibrant look Sweat-free & Reusable: Say goodbye to those annoying sweat rings