Masterpiece and key piece of the RMFC collection.The famous Rocky Mountain feather bed down vest is made of 70 denier nylon taffeta. It is a durable and long-lasting fabric. Also, the construction is made in a 3-layer construction. This improves its lightness and warmth retention. The European down is treated to be water-resistant. This makes it durable. Natural leather and chrome tanned leather yokes with a down padded stand-up collar. Two hand warmer pockets with separate Velcro hidden pockets and press button front closure. One inside pocket with zipper. Fitted silhouette 40"= Small42"= Medium44"= Large46"= Large to X-Large48"= Large to XX-Large Padded down stand-up collar Outer 100% polyamide 90% down 10% feather Leather yokes Two patch pockets with separate hidden Velcro inner pockets One interior pocket with zip closure Made in Japan