Disposable Loupe Sweatbands from Vision USA, Cherry Hill, NJ, can be worn under any loupe or head light. The sweatbands are made of soft sanitized cellulose sponge to absorb perspiration. Each sweatband features a sewn elastic band 8 5/8 inches long and 1 3/4 inches wide. The sweatbands are sold in packages of 12 or 25.