Bike shorts are known to be worn mainly by cyclists. They commonly wear tight clothes of Lycra or other form-fitting materials. Though they may look showy or silly, these clothes truly are perfectly designed for cycling long distances in many weather conditions. Beginners, though, may be mystified by how to wear bike shorts that contain padding and fit tightly. It’s easy to make these shorts comfortable, though, whether you’re riding 10 miles or 200, if you know a few keys to prevent common problems.
Remove your underwear. Yes, it may seem unusual, but going commando is definitely the way to go for all bike shorts. The padded "chamois" section that lines the crotch of bike shorts is designed to be worn against the skin. Adding more fabric to that area will result in bunching, chafing and a shorter ride than you had planned--guaranteed.
Apply sunscreen to your legs, particularly the gap between your knees and the cuff of the shorts. Be sure to add a little sunscreen below the cuffs and slightly above them, then move them back into position. The cuffs will inevitably move up as you ride, and you don't want a sunburned stripe where the sunscreen didn't protect you.