Endurance Evolution fabric provides optimum muscle support and feels dryer in nearly all conditions Newly engineered bib-strap construction is comfortable on a wide range of body shapes KISS4 Air womens-specific seat pad for proven comfort Flat-form waist construction front and back Giro3 lie-flat leg grippers. We get a lot of requests for a mid-range performance short, and this one is special. Our Endurance Evolution fabric is 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. We use the Giro3 leg band from our premium shorts and put in the freshly updated KISS Air seat pad.