Q36.5 Gregarius Hybrid Big Fade Long Sleeve is a smart mid-season cold weather jersey with aero-optimized fabrics and fit. The jersey uses a proprietary mix of body-mapped fabrics to offer the ideal balance of insulation, wind protection and breathability. Properly balancing the three is the key to proper thermoregulation ensuring you’ll never feel overheated or damp even on intense training rides in the cold.