The 4 inch wide batten seat is reinforced with an aluminum bar covered in foam that provides extra support Enhanced extra wide back pad extends further forward on hips, giving you amazing comfort and support Adjustable accessory batten seat straps keep your batten seat positioned for optimum comfort Buckle at waist features a roller for ease of Use and to reduce wear to waist belt Tested to ASTM F887 standards and meets ANSI Z133. 12 requirements