SPECIFICATIONS Plush all purpose comfort saddle with memory foam inserts for a pleasant ride Water resistant covering for all weather durability Anatomic relief channel aids in long term comfort Steel rails Use: All-Purpose Rail:Steel Padding:Memory Foam Color:Black Suspension:None Gender:Unisex Size (LxW) Medium: 270 mm x 160 mm Wide: 270 mm x 192 mm Weight: Standard: 453 g Wide: 500 g