The Saddlemen Tech Memory Foam Seat Pad Saddlemen Tech Memory Foam Pads with SaddleGel offer easy and portable comfort. These pads are the perfect accessory for long rides and are just the ticket for stylish seats that wont leave you short in the comfort department. The 3D molded air circulation channels provide added circulation for maximum comfort. The top layer of 3D memory foam contours to the riders body and additional memory foam is strategically positioned under the hip bones and other high pressure areas for maximum comfort. This design is an excellent complement to SaddleGels support and comfort. All pads can be used with either the supplied harness system or by simply setting the pad on top the vehicles seat while the non-slip bottom will hold it in place while you sit comfortably above. The quick-disconnect harness system mounts over the seat and keeps the pad in place even without a rider present. The harness remains in place when pad is removed. Available in three different sizes, to suit almost any motorcycle seat. MD - Most sport bikes, dual sport bikes, and the smaller passenger pillions of cruiser and adventure bikes. 9 L x 8 rear width x 6 front width. LG - Most non-touring Harleys and other cruisers such as the VTX, Shadow, Magna, Vulcan, Intruder, and VStar the GS, Tenere and Tiger adventure bikes the ST. FJR, Concours, GT, RT, VFR sport tourers and many superbikes. The large also fits many of the rear passenger seat of many similar bikes. 10 L x 14 rear width x 8 front width. XL - Most large cruisers and most touring bikes including the HD Baggers, Goldwings, Voyager, Royal Star and Victory as well as larger adventure bikes. 12 L x 15 rear width x 8 front width. Note LG and XL consist of the same shape and pattern.