Its ergonomically shaped, pre-curves foam panels, soft neoprene edges, spreader bar protector, and padded leg straps ensure comfort and ease of motion. Seat harnesses have been around since the early days of windsurfing and still occupy an important place in kiteboarding even if you don’t see them nearly as often as their more popular waist harness brethren. Riders for whom the waist harness doesn’t offer any comfort, riders who have a hard time reaching the bar, and riders who are focused on racing and or foiling are sure to appreciate the Mystic Supporter for its solid design and important function.