This is Castelli`s high-performance mid-range bib shorts, made for an endlessly long stage or an hour-long workout, indoors or out. The Endurance Evolution fabric is a high modulus, very matte Lycra fabric that feels extremely dry while providing just the right amount of compression. The waist construction eliminates seams and elasticity and lies completely flat. The ""Raw-cut"" leg cuffs, like the premium Premio shorts, rely on vertical silicone strips to keep the leg in place without the pressure that creates the dreaded ""squeeze"" effect. A great short needs a great seat pad, and the women's specific KISS Air2 seat pad keeps you comfortable without being too bulky. KISS Air 2 Donna cushionA new, optimized shape, higher density foam and a softer top layer make the KISS cushion more comfortable than ever. Seamless Skin Care top layerThe extra soft outer layer feels incredibly comfortable against the skin. Seamless design to reduce chafing or uncomfortable rubbing. Flexible for full freedom of movement. Anatomically shaped Increased seating comfort due to excellent adaptation to the body.