4-point or 6-point ratchet suspension allows wearer to customise height and fit. This product line meets (and has the ability to convert to either) EN 12492 or EN 397 compliance standards for commercial headwear. Customise your fit with multiple levels of vertical adjustment. Works with a variety of 3M accessories. Common applications: Construction, manufacturing, oil, gas and wind utilities, forestry, any commercial trade that works at or around height. Hi-vis yellow.