Shell is made from 13-gauge, salt and pepper, high performance polyethylene (HPPE) and glass fibers with palm coating and reinforced thumb crotch. Available in several styles and coatings. WARNINGWARNING: Gloves with polyurethane palm can expose you to chemicals including N,N-Dimethylformamide, which is known to the State of California to cause cancer. For more information go to. A4 Cut level