One of the greatest mathematicians of all time with over 800 publications to his name, Leonhard Euler (1707–1783) also played a decisive role in the development of geometry, calculus, mechanics, and number theory. This reusable face mask will fit you nicely thanks to its adjustable nose wire and elastic bands. Choose a design that will complement your style, as face masks are becoming the new trend. • 100% supersoft polyester microfiber • Fabric weight: 2.4–2.5 oz/yd² (80-85 g/m²) • Nose wire that helps adjust the mask • Elastic bands with PVC earloop size regulators • Pocket for a filter or napkin • Washable and reusable

Size guide