Convert your waist harness into a seat harness in a matter of second with these handy strappies! Comfortable wide straps for around your legs without any friction. The Mystic Strappies fit on every waist harness of Mystic. Two straps which go to the side of your harness where you can attach them to the strong metal D-rings. At the front you attach the strap to your spreader bar, this ensures that your waist harness never slides up!