Cycling bib shorts are held up by two bibs while cycling shorts are held up by an elastic band. One of the advantages of bib shorts is the eradication of the waist which can pinch as you are leaned over in the bike position. The other advantage is not having to worry about the shorts being stretched to the point that your mid-section is exposed. For these reasons, pros and riders who like to ride long distances have favored bib shorts which are more comfortable on hard, long races and rides. One of the features that has discouraged especially female cyclists from wearing bib shorts is the difficulty to take a bathroom break. Castelli fixed this dilemma by creating a no-sew bonded reinforcement and a new SnapLock fastener so the female cyclist can open the bib for nature breaks Castelli has been at the forefront of bib short design. In 1977, they offered the first aerodynamic Lycra short and a little more than 10 years later, in 1988, they designed the first modern bib short. In 1999, Castelli modernized the first anatomic seat pad—the Y-cut seat pad. In 2007, the Giro leg band revolutionized the shorts at a time when all other shorts had a tight, thin, and uncomfortable gripper elastic. In 2009, Castelli reinvented the bib shorts with the Body Paint, a single piece of fabric that includes all the features needed for comfort into one seamless fabric. In 2016, Castelli has designed the latest in comfort and aerodynamics. The Mondiale Bib Short for women and the Endurance X2 Bib Short for men have been designed to make you comfortable on your longest training rides while the Free Aero Race Bib Short provides the most aerodynamic shorts for race day. The Veloccisimo Bib Short is Castelli’s best-selling bib short that provides all a cyclist needs to stay comfortable on a ride or race. Castelli has also improved arguably the most important feature in bib shorts—the chamois seat pad. The Progetto X2 Air chamois which was already one of the most comfortable chamois pads available has been upgraded with an even softer fabric to cover the multi-density padding. The Progetto X2 Air Donna seat pad is the padding for Castelli’s women’s bib shorts. The Progetto padding is found in the Mondiale, Endurance and Free Aero Race Bib Shorts. The Kiss Air Seat pad incorporates many of the top features offered in the Progetto padding but at a more affordable price. The Kiss Air Seat Pad can be found in the Veloccisimo Bib Short.