The endura coolmax 8 panel clickfast mesh liner has been designed to be used with clickfast compatible garments the liner simply clicks in to provide enhanced comfort when you39re riding their rapid wick stretch fabric delivers optimal comfort and the mesh panesl deliver excellent ventilation to keep you cool and dry the antibacterial 300 series pad has been used to fight fatigue and prevent aches and pains when you39re riding these cycling undershorts have flatlocked seams for in