Natural, natural, natural. What more can you say about wool fabric construction in the FCW Jacket? Well, as it turns out, quite a bit. The FCW Jacket has 3-layer bonded wool construction that offers an exceptional level of comfort and insulation. Plus, because it's a laminate, the WindKill laminate layer blocks wind and provides water resistance in all but the most extreme weather. Oh, and in case you didn't know, FCW stands for Full Curl Wool. I don't have to explain the full curl thing. A closer look. Wool clothing is what the older guys used to wear as kids and it could be pretty itchy back then. Not the FWC Mountain Jacket. It has a soft fleece lining that feels great against your body. The wool fabric is soft and feels great. Two zippered upper chest pocket, a zippered shoulder pocket and slash handwarmer pockets give high utility. For warmth and protection from wind it features a stand up collar and internal cuffs The look is purely athletic. It simply looks great with Browning's AllTerrain Brown camouflage pattern. And the cut. Pure Athletic and performance fit and styling. The first time I saw this jacket in the field was when I met a friend for ice fishing. It is not only his go-to big game jacket, but his top pick when the frozen breeze is sliding over the ice at your back. Durable. Yes. Its tough enough for big game hunting,, plus it fully washable. On the international durability rating system the FCW Jacket is listed as "tough as nails."