Contact Us about Customization Features One Size fits most Adjustable nose Elastic straps 2 plytri-blend material (3 ply for Rebel Blue and Enviro Green) Breathable Reusable Tearaway label Made in the USA Fabric Knit: 30/Singles Combed Ringspun Blend Weight: 4.7oz. Machine Washable Masks should be washed before first use and after each subsequent use.