Check the listing for details. Prologo Scratch M5 PAS 3D Road & Off-Road Saddle - Lightweight,. Condition: New. Listed at 376.28 USD. SADDLE PROLOGO SCRATCH M5 PAS 3D NACK 140 BKThe Scratch M5 is the latest saddle from Prologo to get the 3D upgrade, bringing further performance to an already iconic seat. 3D printed lattice structure features varying zones, densities, thicknesses and strut sizes that blend together for ultimate comfort and performance. The lower outer edge of the saddle features drains that allow water to seep out and also aids in the cleaning of the seat. Due to the intricacy of the layed hexagonal printing the saddle is compliant, durable and extremely light weight. PAS models feature a channel in the seat to alleviate pressure and numbness in the pelvic region by promoting healthy perineal blood flow. Item Specifications: Rail, Nack, Size (LxW), 250mmx140mm, Use, Road/Off-Road,.