Ion Junior Wetsuits. Ion Products for youth specifically built for Windsurfing, Kitesurfing, Wakeboarding Stand Up Paddleboarding and Surfing. Neoprene products for International shredders. One of the main characteristics is the freedom of movement offered. 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.