Ion Mens Wetsuits. Ion Products specifically built for Windsurfing, Kitesurfing, Wakeboarding Stand Up Paddleboarding and Surfing. Neoprene products for the International Waterman and Woman. Prime characteristics are warmth and exceptional freedom of movement. The Strike with wider arms around the bicep and forearm area allows for less arm pump. The Onyx offers a second skin sensation with tighter cut arms waist and legs.