The SLR Boost is our saddle of choice due to its lightweight design and innovative use of materials. Details: - Custom perforations and subtle branding integrates Selle Italia tradition and ENVE design - Upper material is made of a special polyurethane cover called Soft-Tek - Two width options: 130 mm and 145 mm - Weight: 130mm- 130.5g, 145mm - 134g - Rail: Carbon/Ceramic, 7x9mm - Length: 248mm