1.Can be used for water bottle range from 20oz to 40oz. 2.Is compatible with nearly all water bottles and features an adjustable strap, ensuring a secure fit that won't slip off. 3.Enough capacity to hold cash, headphones, cards, charging heads, keys, lipstick, pills and other small items to free your hands on the go. 4.There might be slight color differences due to variations in screen displays. 5.This product is made of natural neoprene. You may detect a mild odor at first, but rest assured, it will slowly dissipate after use.