NylonWide range of application: owning level 5 cut resistance standard, the safety arm sleeves are useful for wrist arm protection in a variety of situations and fields, such as industrial, construction, and food processing markets, also suitable for kitchen, garden, farm to prevent arms from getting hurt or scratchedQuality material: made of HPPE, nylon and spandex material, the arm protection sleeves are 15 times stronger than steel, the high performance polyethene makes it highly breathable, elastic and lightweight, anti-cut and comfortable to wear, helping to keep the forearms from mild burns and high temperaturesLevel 5 protection: the cut resistant sleeves have 5 levels of cutting resistance, abrasion resistance and tear resistance, which can effectively keep human's hands from being hurt by knives and other pointy things, providing heat and cut protection from the knuckles to your shouldersComfortable to wear: these safety protective sleeves are breathable and stretchy to provide you with a comfortable wearing experience, light weight ensures that there is almost no burden on your arm; After using, they can be washed easily and dried naturally to be ready for next-time usePortable size: measuring 20 x 9.5 cm/ 7.9 x 3.7 inches (L x W) before stretching, the arm protector sleeves have average size that fits most people's arms, and fit both right or left hands; In addition, they are comfortable to wear and have a fresh cool feeling on your arms, also washable and reusable