* HeiQ V-Block Silver Technology * UPF 50+ * Cooling Fabric With RepreveⓇ Recycled Fibers * Reusable and Washable * Fits Youth - Adult XL * Ear Slits for Secure, Comfortable Fit * Made in the USA Our new Major League Baseball Elite Cooling Gaiter uses our most innovative material yet — it’s lightweight, breathable, and antimicrobial. Did we mention that it’s self-cooling with UPF 50+ or that it’s made from recycled water bottles? High tech, functional, and sustainable. The Elite Cooling Gaiter features the cutting-edge science of HeiQ V-Block. HeiQ V-Block is an innovative Swiss antimicrobial technology that uses an advanced silver technology and a vesicle booster technology to inhibit the growth of microorganisms on textile surfaces.