[100% Safe & Odorless Material] All our water bottles are totally BPA-free and non-toxic, quenching your thirst with odorless water as well as a glass one can provide. The also gives the extra durability withstanding accidental shocks and temperatures vary from -10C to 96C. [360 Leakproof Design] This water bottle employs a 3-stage leakproof design: a silicone sealing ring prevents leakage in the screw area; two silicone dot pads seal the nozzle and air vent when the lid is closed; a safety lock prevents accident opening the lid. Comes with extra dot pads for spare use and a complimentary sponge brush for your convenience. [Humanization in Every Detail] By just one press, the lid opens immediately and its anti-rebound design ensures your using safety. Built-in with a removable filter, you can always enjoy drinking and avoid chock by ice cubes, fruits, or tea leaves. The air vent balances the barometric pressure, making water flow into your mouth fluently. [Portable for Multiple Activities] The 500ml capacity achieves a perfect balance between utility and portability. With a carry loop, you can go for both indoor and outdoor exercises with it, including cycling, running, camping, hiking, yoga, treadmill, etc. Its compact size also fits your backpack and bike bottle holder perfectly. [Ideal Gift for Families & Friends] As hydration helps boost our metabolism, this water bottle becomes an ideal gift option for families and friends.