Pearl Izumi Men's Pro LTD Bib Shorts Body, back legs: 72% nylon 28% elastane Legs: 80% polyester 20% elastane Lower legs: 78% polyester 22% elastane Bib mesh: 86% polyester 14% elastane Imported Spring/Summer 2014 P.R.O. Transfer Aero with In-R-Cool fabric at the leg openings provides aerodynamic benefits Direct-Vent panels provide superior ventilation