Detachable Carrying Strap - You Can Remove The String For Individual Cleaning. When Your Kids Is Out And About, The Bottle Can Be Hung On The Backpack Or On Your Fingers Instead Of Holding It All The Time, So Your Palms And Wrists Will Be Relaxed. | | Safe To Drink - 'S Insulated Water Bottles Are Made From Bpa-Free, Phthalate-Free, Non-Toxic, Rust-Free 18/8 Stainless Steel. The Water Bottle Won'T Leach Any Harmful Substances Into Your Drink, So Kids Can Sip Every Sip Of Their Favourite Beverage With Confidence. | | Longer Insulation - Double-Layer Vacuum Insulation Technology Combined With The Classic Coke-Shaped Sip Bottle Keeps Drinks Cold For 24 Hours Or Hot For 12 Hours, Ensuring Drinks Stay Fresh And Cold All Day, Right Down To The Last Sip. | | No Leak No Sweat - The 100% Leak-Proof Lid Allows The Water Bottle To Be Kept Safely In The Backpack Without Spills Or Mess. Vacuum Technology Makes The Water Bottle Sweat-Free And Even When The Glass Is Filled With.