Alycore™ is one of the most cut and puncture resistant materials available. Our Alycore™ gloves offer maximum dexterity and sense of touch due to the high degree of flexibility and the patent pending construction. . All Alycore™ styles provide a high cut level performance, and by adding Alycore™ to the premium Big Jake® glove you get unbeatable protection from abrasion as well.. Big Jake® gloves are used in heavy duty and rugged environments and are made tough for the toughest jobs. The 1717A glove features a full leather back for added protection and is sewn with super-strong, heat resistant DuPont™ Kevlar® thread. Alycore™ in the palm and fingers (see protection zones) for cut resistance. It also features an 8 oz. jersey palm lining, 9 oz. cotton canvas back, and a 2.75" rubberized safety cuff.