Product details:

Castelli apparel runs small. Consider sizing up for appropriate fit. Check the Size Chart for details. The Castelli Endurance X2 Bib Short is made to handle your longest rides thanks to the Progetto X2 Air chamois and Endurance Evolution fabric, which provides muscle support to make those four-hour rides just that much more comfortable. Castelli's Progetto X2 Air chamois is one of the most technologically advanced pads ever made. A "skin care layer" uses a soft, stretchy, seamless, bacteriostatic material that has the task of preventing any sort of chafing. It's made to adapt to the shape of your body without any folds and is probably the softest thing to touch your private parts since you got out of diapers. The "cushioning layer" puts the right padding in the right places with the maximum thickness under the ischial bones where you sit and perforated viscous comfort padding keeps the chamois breathable. Castelli's high-end chamois combined with moisture wicking, compressive fabric means the Evolution X2 Bibs are made to go the distance.