The Solidur range of Type A Class 1 (20 m/s) chainsaw safety trousers (or pants in US English!) ranges from the entry level (but far from basic) AUTHENTIC styles, through FELIN for a bit of extra stretch, SOFRESH for added ventilation, GLOW for high visibility, COMFY for what it sounds like!, INFINITY for best sellers and the NEW CLIMB which has added calf protection as well as a host of other features.