The Kappa Evo is a saddle aimed at recreational riders for any distance. It has a semi round shape & dropped nose well suited for set ups with large saddle to handlebar drop. The hull is designed for flex which helps the saddle adopt a hammock shape in use aiding comfort. Specifications: Size (mm): 275 X 147 Weight (g): 251 Base: Nylon Rail: T 2.0 Cover: Microfiber Padding: Light PUTechnologies:PAS: Perineal Area System: this special cutaway technology eliminates pressure spikes & numbness in the pelvic area. Unlike regular cut-outs the particular shape of the foam mold leaves the base intact & ensures that the saddle remains durable over time. This ensures a continuity of the pelvis movement even after many kilometres. The result is comfort & performance over long rides. It’s compatible with both male & female anatomies.ESD: Ergo Shape Design: This is a refined saddle shape developed as a result of biomechanical studies done by Prologo over several years. ESD saddles feature a slender front area & a short rear area that quickly reaches maximum width. This permits a round pedal stroke allowing the rider to maintain a natural position. The legs of the cyclist have more space during all phases of the pedal stroke reducing friction & increasing alignment & performance. Finally the opening swift of the rear part of the saddle helps the rider to find the correct support & support of the ischial bones. This prevents sliding forward & any rotation of the pelvis.T2.0: Chromium rails with a high hardness index. They provide the perfect blend of mechanical resistance & compliance over a long lifespan. The material is chosen for its ability to deal with impacts & stresses.