Cayl Nylon Trail Shorts in Black. Cut to above-knee length, these regular fitting Cayl shorts are crafted from a nylon-polyurethane blend, these Cayl shorts are designed with a DWR coated exterior and an internal lining. Featuring an elasticated waistband, four pockets, a front mesh pocket and a zippered rear pocket, these black Cayl shorts are finished with a retroreflective logo.