Made to support you through thousands of miles on trail, the Castelli Trail Liner Shorts don't miss a beat. With the KISS AIR2 seat pad for maximum comfort in the saddle and highly breathable mesh material throughout, you've already checked off the two most important boxes. Additionally, the GIRO4 leg gripper keeps everything in place without hugging too tight, so whether you're shredding singletrack or cruising through the park, the Castelli Trail Liner Shorts are sure to become your new favorite.