The ISM PN4.1 is the newest offering in the Performance Narrow category of saddle and features the same shape as the popular PN4.0, only with increased paddingPN4.1 offers superb thigh and hamstring clearance which allows for more rider body movement around the seat and is great for diving into fast corners125mm wide to accommodate a greater range of sit bone widthFeatures ISM 40-series foam padding for a balance of performance and comfortTapered-edge mold design for incredible comfortAuto-racing inspired air vent chassisRoad/Gravel/TTChromoly 40 seriesBlack255mmx125mmUnisexUPC/EAN/GTIN: 4716112781084