This Cut Pro® sleeve with Hero™ Technology is made of a high performance cut resistant material that achieves high levels of cut and comfort. The blended ARX®, stainless steel, and other fibers are used for general purpose work applications to provide cut and abrasion resistance when working with sharp objects. The 9318K13T is an 18 inch sleeve with thumbslot that will help protect your arms in tough environments. Looking for the best cut resistant sleeves? Look no further than MCR Safety!