Based on our ELITE-level tight pattern, we use a light thermal fleece fabric & built-in chamois in for a great cool weather tight. SELECT Thermal Fleece fabric sets the benchmark in warmth & moisture transfer Anatomic multi-panel design Flatlock & double needle seam 8 inches lower leg zipper with zipper garage Plush elastic leg gripper Reflective elements for low-light visibility The pre-shaped & breathable 13mm thick Tour 3D Chamois optimizes riding comfort & athletic performance Form Fit Weather forecast: Cold & dry Temperature rating: 10 degrees Fabrics: 90% polyester 10% elastane