NEOPRENE+NYLON ELASTIC FABRIC : Environmentally Friendly,Healthy,Soft And Commfortable,And Skin Friendly. BLIND STITCH : Fine Workmanship The Line Is Delicate And Neat. FRONT CHEST-ZIPPER : YKK Zipper,Rugged And Lasting Service Life. LOCK WATER DESIGN : Foot And Cuff Use Shape Cutting Design,More Intimate And Comfortable Reducing Water Entry. NECKLINE DESIGN : Ergonomic Neckline Shape Cutting Technology That Greatly Blocks Water From Entering. ARMPIT CUTTING : Ergonomic Armpit Shape Cutting,More Close-fitting And Comfortable. Free Movement Of Body. KNEE PADS : Knee Pads For Great Mobility,Comfort And Superior Durability. EXTENSION OF THE KNEE : Four Ways To Stretch High-spec Knee Panels Are Designed To Provide Maximum Bending And Stretching Of The Knee.