The protective Hot Chilly's® Kids Micro-Elite Chamois Half Mask offers dependable comfort with a breathable polyester weave. Slip-on construction features an adjustable hook-and-loop back to provide a personalized fit. Lightweight fabric constructed with a mesh opening over the mouth and nose to allow exceptional ventilation. 89% polyester, 11% spandex. Machine wash, tumble dry. Imported. Product measurements were taken using size LG-XL. Please note that measurements may vary by size. If you're not fully satisfied with your purchase, you are welcome to return any unworn, unwashed items in the original packaging with tags and if applicable, the protective adhesive strip intact. Note: Briefs, swimsuits and bikini bottoms should be tried on over underwear, without removing the protective adhesive strip. Returns that fail to adhere to these guidelines may be rejected. Measurements: Circumference: 18 in View Zappos.com Glossary of Terms Hot Chillys Kids Micro-Elite Chamois Half Mask (Little Kids/Big Kids)