DESCRIPTION Masks are a necessary and mandatory accessory for everyone, whether at work or during leisure time, and of course while practicing their favorite sport. At OTSO, we have developed high-quality masks with our characteristic designs, unique and bold. MAIN FEATURES * Manufactured entirely in the European Union * They have three layers: * The first, which is in contact with the skin, is made of cotton, fluffy on the inside to prevent irritation, and with a great capacity for filtering bacteria and microbes. * The second is made of polypropylene, the most commonly used fabric today for mask manufacturing, with a specific micro-filtration structure and a "water repellent" membrane system.