The SLR XC Flow is the mountain bike variant of the SLR Flow saddle. Turns out it's perfect for 'cross as well. The core of the designis the standard SLR Flow with extra padding, reinforced Kevlar edges, textured vinyl center strip and a durable Lorica cover. Simply put, it's the finest XC/Cross saddle ever produced. We have the XC on end of year 2012 closeout pricing and limited to quantity on hand.