This mask is created with soft, breathable 2-ply gentle stretch materials. External 190 GSM material is breathable Moisture Internal material is breathable hydrophilic mesh for ultimate comfort on your face. The easy-to-use soft elastic ear straps feature size adjusters for a custom fit. Suitable for all types of activities & extended wear. Not intended for medical use. Do not bleach/iron. Full Dye-Sublimation imprint however a full black background may not be used on this product. 5 1/8" H x 8 1/4" W