Some cooling towels may offer extra features such as UPF (Ultraviolet Protection Factor) sun protection, antimicrobial properties, carrying cases, or the ability to cut or customize the towel's size to fit your needs. Cooling towels work by leveraging evaporative cooling to produce their chilly sensation. More Ways to Stay Cool: Best Cooling Sheets| Best Cooling Mattress Toppers| Best Moisture-Wicking Underwear| Best Hydration Running Vests | Best Waffle Towels