Pearl iZUMi Men's Elite Sleeveless Triathlon Tri Jersey 100% Polyester Imported Fall/Winter 2010 ELITE Transfer Direct-Vent integrated mesh panels for fast drying, optimum temperature regulation Flat lock seams for a chafe-free fit Newly designed back pocket gives a place to securely stash nutrition away Content: Main: 82% Nylon/ 18% Lycra Tricot, Mesh: 75% Polyester/25% Spandex