SQlab 611 Ergowave Saddle. Features: Wider nose and slightly more padding than the 612 model Ergowave shape offers higher performance thanks to optimal pressure distribution throughout the deep structures of the body High-end, aggressive saddle designed for racing Incorporates SQlab's unique design where the nose drops down away from the rear of the saddle, allowing for 55% of the rider's weight to be transferred to the ischial or "sit bones" K18 synthetic top, marathon foam padding with Kevlar sides Specifications: Width: 130mm Length: 280mm Rail Size: 7 x 7mm (Standard) Rail Material: Chromoly Cover Material: Synthetic Gender: Unisex Discipline: Road Color: Black Weight: 239g