The water bottle attach an anti-slip soft protective silicone sleeve, which helps to prevent dents, scratches, and other imperfections on your bottle. Give your water bottles a longer life. And when you have sweat or water on your hands, you won't slip off when you take the gallon water bottle to drink. This protective boot is made of high quality BPA-FREE silicone, Safe for all ages. The flip top lid is designed with secure lock make it dust and leak proof. With unique measurement scale on it, this water jug is great for measuring your daily intake of water, reminding you stay hydrated and drink enough water throughout the day. A must have for any fitness goals including weight loss and overall health.