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 All SQlab saddles come in multiple sit bone widths (130,140, and 150mm) dependent on seat position and riding posture Specifications: Width: 130mm, 140mm, 150mm Length: 280mm Rail Size: 7 x 7mm (Standard) Rail Material: S-Tube Cover Material: Synthetic Gender: Unisex Discipline: All Mountain, Enduro Color: Black Weight: 204g (140mm)