I bought my first pair of bids 6 years ago and now think that bibs are the only way to go. One of the drawbacks to bibs is when you need to wizz. The Castelli bibs have a lower cut in the front so whizzing is easier than any other bibs I have owned. The fabric at the bottom of the leg is more comfortable than rubber gripper types and do a fine job of holding the shorts in place. The chamois is first class. My wife teases me that the lighter colored fabric in the front points to your "you know what". Maybe that's why I bought them.