One-piece suit with long arms and sleeves in very thin 1 mm, double lined neoprene. Rear zip, single-lined collar with Velcro adjustment. Fastening: Zipper One-piece Wetsuit 1 mm Neoprene High Stretch Long Sleeve LU474101 Double lined foot strap and buttonholes at the wrists that make it easy to put on under a normal wetsuit. Italian Design Cressi: manufacturer of diving equipment since 1951