Designed to perform this Port Authority gaiter incorporates Hei Q Viroblock treatment into the fabric. Hei Q is a Swiss-based provider of antiviral and antibacterial solutions. Sized for smaller faces this youth gaiter features an elastic binding to help keep it in place when worn as a face covering. 95/5 poly/spandex U P F rating of 50 Elastic binding at the top Dimensions: 8 x 10 Machine washable Non-returnable Not intended for children under age 4