Masks are a necessary and mandatory complement for anyone, both at work and during their free time, and of course while practicing their favorite sport. At OTSO we have developed high-quality masks with the designs that characterize us, unique and daring. MAIN FEATURES. Manufactured entirely in the European Union They have three layers: The first, the one in contact with the skin, is made of cotton, fluffy on the inside to avoid irritation, and with a great capacity to filter bacteria and microbes. The second is made of polypropylene, the fabric most used today for the manufacture of masks, with a specific microfiltration structure and a "water repellent" membrane system. And the third is polyester for high-quality sublimation. We have three sizes: Size L/XL designed for men Size S/M specifically for women and adolescents And size XS for children OTSO masks are reusable, they can and must be washed following the instructions on the inside label, and do not have an expiration date. It is highly recommended to wash them also before first use. WASHING RECOMMENDATIONS. Wash at 40 degrees Max Do not iron Do not bleach Do not tumble dry
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