Easy to operate: the water bottle has an on/off button that opens the lid at the touch of a button, so you can pick it up and drink directly with one hand, one-handed operation; the 180-degree opening lid is fixed so you can drink without touching your nose; In addition, it has a removable filter to easily filter tea stains; the 2-inch spout makes it easy to clean. Completely leak-proof: food-grade silicone ring and safety latch with double seal for complete leak-proofness; wide mouth makes the gym water bottle easier to clean and add ice and fruit; leak-proof lid (silicone seal) covers the entire mouth of the water bottle and can completely solve the problem of leakage. Health reminder: the water bottle has unique scale markings that provide a good measure of daily water intake, reminding you to stay hydrated throughout the day; use it instead of a traditional water cup and say goodbye to frequent filling, or interfering with hydration due to laziness in filling. Easy to carry: Attach the sport bottle to your bike frame or stick it on the sides of your backpack and take it with you on the go. It also comes with a carry strap for easy grip, perfect for hiking, cycling, camping, running, yoga, gym and office. Material upgrade: The upgraded water bottle is made of PC body + PP lid + silicone seal, odourless, reusable and durable, temperature range: -10℃~95℃, can be filled with hot or boiling water.