L1 NITRO GAMMAHey rider, here you can find everything you've to know about the L1 NITRO GAMMA JACKET. GAMMA JACKET L1 NITRO The GAMMA is a high quality L1 NITRO MAN JACKET. This item has a very strong lining so you can feel warm even with the coldest cold. It has a DWR (Durable Water Repellent) treatment that