360 degree swivel foot straps The ankles are equipped with double 360 degree swivel steel joints, which effectively prevent the straps from tangling and guarantee the surfer's maximum freedom on the surfboard. Comfortable ankle cuffs Velcro cuffs are filled with soft, lightweight and comfortable rubber. It won't irritate your skin for long periods in the water, and the adjustable straps with strong velcro ensure the armband stays securely in place around the ankle, preventing blisters and chafing. Double wrap design fits most ankle sizes for both men and women. Safety TPU coils prevent dragging or slipping through various wet objects such as seaweed or logs of trees. Coiled waistbands absorb the impact of waves and increase safety. Spiral webbing for surfing Designed with spiral webbing, padded ankle straps allow you to glide comfortably through the sea, the river or the lake. Ideal for surfing, boogie boards, stand-up paddleboards and other water sports. Widely used for fishing, sailing, canoeing, surfing, snorkeling, rafting, boating.