Serfas TailbonesA(R) saddles supports the sit bones and provides a smooth comfortable ride using Progressive Density Foam while a Deep Groove Design allows maximum blood flow into the neurovascular bundle for drastically reduced numbness and discomfort. Our latest addition to the TailbonesA(R) family introduces a top layer of Memory Foam for a more personalized feel as well as added comfort. 90 Day Comfort Guarantee We understand finding the perfect saddle can be tough, which is why every SerfasA(R) saddle sold is backed by our 90-Day Comfort and Satisfaction Guarantee Limited Lifetime Warranty We stand behind our products and are committed to providing the high quality all of our customers deserve which is why SerfasA(R) warrants to the original purchaser of a saddle that the product is free from defects in materials and workmanship for the lifetime of the product. (See details) Features: Top Layer of Memory Foam For Added Comfort High Sit Area For Soft Tissue Relief Progressive Foam Technology Relaxed Riding Position Rails: Steel Cover: Waterproof Vinyl Specs: Length: 277mm Width: 176mm Weight: 452g +/-