The Men's Trek Circuit Thermal Cycling Bib Tight by Trek Bicycle Corporation provides superior comfort and performance for your rides. Designed with thermal fabric and a brushed interior, these tights retain body heat, while the articulated leg is tailored for the riding position to prevent bunching. Made from 76% Nylon and 24% Spandex, these pull-on bib tights feature soft, low-profile bib straps and a tapered ankle design. For easy maintenance, they are machine washable and can be tumble dried.