NRS Drylander Shock Cord SprayskirtThe NRS Drylander Shock Cord is patterned to stretch easily and fit drum tight on today's kayak designs. Rubberized inner deck coating grips the kayak coaming from the inside, resisting slippage. Tough 4 mm neoprene surface holds well under pressure. Infinity Coating on the front edge and sides gives great protection in high wear areas. 2 mm Extend material with four way stretch Superspan tunnel gives a snug comfortable fit.