The Giro Women's Velocissima Short makes use of their Endurance Evolution fabric, a high-modulous very flat Lycra® fabric that feels extremely dry while giving just the right amount of compression. The waist construction eliminates stitching and elastic and lies completely flat. Finally they use the Giro3 leg band from their premium shorts and put in the freshly updated KISS Air seat pad for incredible comfort. KissAir Seat Pad The kiss Air seat pad aims to incorporate as many of the features and comfort as the top-of-the-line progetto x2 seat pad but at a more affordable price. 1. Seamless skin care layer: A super soft, brushed microfibre top that maximizes comfort and fit. Seamlessly engineered to eliminate chafing and abrasion. Flexible to move with you. Bacteriostatic treatment to avoid saddle sores and infection. 2. Continuously variable thickness: Dual density and infinitely variable thickness gives you the perfect cushioning for every part of the pad. Maximum thickness and density in the ischial zone, tapering to moderate thickness in the perineum, and minimum thickness at the perimeter. 3. Anatomic shape: Comfort is further enhanced by creating a perfect interface to your body during every pedal stroke.