Nylon? Yes - Wool? Kinda
- Familiarity: I returned this product before using it
- Fit: True to size
- Size Bought: medium
Others have mentioned, but note that this is mostly a nylon windbreaker. There is a small amount of wool under the arms and around some of the back. If you look at the gray, the "wool" is the black portion. It appears that the wool is for fashion and not function. For a nylon vest that is fashionable, I simply cannot invest this much coin - back it goes.