Petzl Sterno Chest Harness One Size. Comfortable slim and low profile STERNO straps also sit wider on the shoulders to reduce neck chafing. The front bridge is not fixed providing great freedom of movement. Three connection heights offer a more customized adjustment. Finally the hybrid metal buckles are adjustable and can be fastened and unfastened making it easy to put on and take off. Specifications for Petzl Sterno Chest Harness: Manufacturer: Petzl Fabric/Material: Plastic Aluminum Polyester Size: One Size Weight: 130 g Features of Petzl Sterno Chest Harness Ergonomic design: Different colors on the interior and exterior of the straps make it easy to identify the correct orientation when putting on the straps; Hybrid metal buckles are adjustable and can be fastened and unfastened making it easy to put on and take off; Rear adjustment buckles allows the straps to adapt to a variety of body sizes; Three possible connection heights for the ascent system provide a more customized adjustment Comfortable: Slim low profile straps; Straps are widely spaced on the shoulders for increased comfort and reduced neck chaffing; Front bridge is not fixed providing great freedom of movement Package Contents: Petzl Sterno Chest Harness Petzl C092AA00: Sterno Chest Harness One Size