Different by design, the KUHL Men's Spyfire Jacket combines superior fabrics, articulated patterning, and thermal body mapping to deliver technical performance with unparalleled style. Three unique fabrics, each engineered for a specific purpose, differentiate this down from others. MIKROTEX nylon shell is woven extremely tight to provide durable down proofing with wind and water-resistance. This SPYFIRE® body front has an additional overlay for extra protection against the elements. TUFFLEX softshell reinforced shoulders allow you to carry skis or equipment that would shred any ordinary down sweater. Lightweight underarm knit panels allow heat to escape for better climate control and comfort in a wide range of temperatures.