Petzl AVAO BOD Croll FAST fall arrest harness size 1 CSA ANSI The dorsal construction is X-shaped to more completely envelop the user. This design optimally distributes pressure in order to ensure great comfort during prolonged suspension. Shoulder straps with self-locking DoubleBack buckles for easier harness adjustment. Integrated CROLL ventral rope clamp. The shoulder-strap/waistbelt connector is equipped with a captive bar to inhibit connector rotation. Two attachment points allow a PODIUM seat to be added, for greater comfort during prolonged suspension. Comes in European (European standards) and international (North American and European standards) versions; international versions have a fall indicator: a red strap appears on the dorsal attachment point after a fall to indicate that the harness should be retired