FXR 30% to 70% Off Sale

Would really like to order some fxr mission stuff. Tried on the jackets and I normally wear a large or xl. All my local store had was medium in the mission x and it was still too big, way too long and buldged out big time when I sit down. I want to order a small but that just blows my mind, whats your return policy if I ordered and a small didn't fit. Also can you recommend me to go with the mission lite jacket or mission jacket. Will be riding mountains and will have different layers.