The Petzl Gym Harness is a simple, adjustable harness. Usually used for group programs or beginners the Gym Harness is one size fits all & easy to adjust. Adjustable leg loops allow size to be adjusted depending on comfort desired or layers of clothing worn, & allow the harness to be put on when wearing skis or crampons Double Back buckles for easy adjustability They help prevent incorrect manipulation. Single Dyneema-reinforced tie-in point for increased durability Detachable elastic leg loop straps Leg loops & waistbelt are color coded to facilitate donning