This item is made of a crisp nylon and polyurethane blend. Material: 85% Nylon, 15% Polyurethane Size: 4 Color: Dark Gray Model Number: 18SCM-B01109 The listed size is 4, but it feels slightly small. I haven't worn it much, but it is a used item. I would appreciate it if those who understand this would consider purchasing it. Thank you.