1. Heat insulation function: The neoprene material used in the water bottle carrier offers a heat insulation function. This means that it helps to keep your beverage at the desired temperature for a longer period. The insulating properties of the neoprene can help maintain the temperature of your hot or cold drink for approximately one hour, prolonging the refreshment and enjoyment of your beverage. 2. Scald prevention for single-layer aluminum or stainless steel kettle: This bottle cover is specifically designed to provide scald prevention for single-layer aluminum or stainless steel kettles. The neoprene material acts as a barrier, helping to insulate the heat and prevent the bottle from becoming too hot to handle. This feature ensures your safety and comfort while using hot liquids in your water bottle. 3. Convenient carrying strap: The water bottle carrier comes with a convenient carrying strap. This strap makes it easy to carry your bottle around, whether you are hiking, traveling, or simply on the . It offers hands- convenience, allowing you to keep your water bottle securely with you while keeping your hands for other activities. 4. High-quality neoprene material: The water bottle carrier is made of high-quality neoprene material, ensuring its strength and durability. This means that it can withstand the rigors of use without easily getting damaged or worn out. It is built to last, providing long-term for your water bottle.