Luna X5 is the optimum MTB saddle made for women. It is designed specifically to suit a woman’s body shape & movement while riding off-road, with Ischial Flex providing flexible support across the whole surface of the saddle to create comfortable freedom for the rider’s soft tissue – so you can ride longer, faster, harder & all in comfort. According to the Spine Concept EVO system, the Luna X5 Regular’s maximum width of 141mm is best suited to riders with a relatively high power output to bodyweight ratio, & the Luna X5 Large’s maximum width of 153mm is best suited to riders with a lower power output to bodyweight ratio. The fi'zi:k Luna X5 saddle’s light, strong, corrosion-resistant S-alloy rail supports a carbon-reinforced nylon shell. Its central section is a laterally strong & stiff carbon reinforced co-injected nylon spine, which is bonded to thermoplastic elastomer side panels, that allow flexibility & movement when pedalling, & form to the rider’s body shape. The ergonomic cut-out shape has been specifically designed to provide additional relief to areas of soft tissue particularly during long rides. & to cope in style with the demands of off-road riding, the Luna X5 has reinforced Microtex over its side panels, with Microtex Classic on the upper shell. Full cut-out shape Carbon-reinforced nylon shell S-alloy rail Black Microtex Cover I.C.S ready for bags & lights Regular: 280x 141mm, 243g Large: 280x 153mm, 247g