Solas Marine Head Band's Retroreflective Material is 1-in x 22-in fabric with 5-inches of loop Velcro® for adjustments. Reflexite® FD1403 is an 8 mil thick, flexible, UV-stabilized, weather-resistant polymeric film with prismatic retroreflective elements. This material is designed to withstand the harsh marine environment. FD1403 is IMO Type I (e.g., life jackets) and II(e.g. ring buoys, life floats, life rafts and lifeboats) certified and meets USCG requirements for SOLAS (Safety of Life at Sea).