5mm wider than the PN3.0 to accommodate a greater range of sit bone widthsPN4.0 offers superb thigh and hamstring clearance which allows for more rider body movement around the seat and is great for diving into fast cornersFeatures ISM 30-series foam padding for a balance of performance and comfortThe ISM PN4.0 is the newest offering in the Performance Narrow category of saddlesTapered-edge mold design for incredible comfortAuto-racing inspired air vent chassisRoad/Gravel/TTSteel Alloy30 seriesBlack255mmx125mmUnisexUPC/EAN/GTIN: 4716112780902