Men’s Khumbu 100 GSM Insulated JacketThis is our super light spring or fall jacket. With 100 GSM of synthetic insulation, this jacket is one of the warmest in the light category. It is ideal for layering in extreme weather conditions or great on its own. The DWR coating provides durable water repellency, while the 100gsm synthetic insulation retains almost all its heat even when wet. The jacket features exterior zippered hand warming pockets, an interior zippered chest pocket, and a