The jacket has held up wonderfully! There are no zipper issues, no fraying seams, and I can't find a wear spot on it. I've put probably 15,000 worn miles in this jacket and it still looks brand new except for the bugs. I have a Fieldsheer Airspeed 4 perforated leather jacket. The only thing I've had to do to it in 20,000 worn miles or so is have a new zipper half sewn in. I crash tested it with excellent results as well.
I have had the Fieldsheer Supersport leather jacket for 4 years, with great results. I have thoroughly worn two Fieldsheer jackets and a pair of gloves.