CASTELLI CHILL SLEEVES ARMKÜHLERLots of arm coolers promise to protect you from the sun. Now you have arm coolers that remind you to keep cool. Youve seen the so called cooling fabrics on the market for a few years now. Those fabrics are infused with Xylitol which your skin perceives as being cool, although it actually does nothing to actually cool you. The actual cooling still comes from evaporation. Castellis Chill Sleeves are made with our new Prosecco Ice fabric. Its got its