The Fuse Lightweight is ION's solution for a super lightweight drysuit. It features high water resistance (10,000 mm) and is also breathable. Neoprene cuffs at the neck, arms and legs making it comfortable to wear, even for hours. The quality Tip-Zip provides impermeability to water and durability. On the inside there are suspenders to keep the suit in place during use. Depending on the base layer, this suit it is the go-to option for colder days. For water sports athletes with no fear of the coldand were talking REALLY cold. This suit will keep you warm and safe even in the wildest, most hardcore conditions. Not recommended to kitesurf or windsurfing. Better option if you want to use the drysuit with the harness is ION Fuse Drysuit 4/3 BZ DL