STAY HYDRATED: it holds 540ml (almost half your daily recommended water intake) so it's ideal for the gym, office, home, school or park. A TOTALLY REUSABLE WATER BOTTLE: refill and reuse it daily, and help to reduce the consumption of harmful single use plastics. TAKE IT WITH YOU: its leakproof Perfect Seal lid and rust resistant 18/8 stainless steel body make it ideal for backpacks and handbags. USEFUL INFO: this insulated water bottle is 100% BPA and phthalate free; 12 month guarantee.