Ill throw in my opinion here. I bought a pair of FDwear V3 pants earlier in the season. My initial impressions were great, but honestly, for a company that markets essentially park gear, their stuff is not even close enough to durable to be used in the park. Every single time I take a spill, I get a new tear. Even minor impacts with a rail result in a new tear. At this point they have probably 7 or 8 small tears that I have had to sew up to keep from losing the insulation.
I emailed them early on after I got the first few asking if there was a defect and I got the standard response of 'That looks like normal wear and tear, you can send them to us and we will patch them for 20-40 dollars if you would like'. I am sorry, but I do not think I will be buying FD wear again because the stuff just is not durable enough. Hell, the zipper on one pant leg broke before I even crashed in them. I have had a pair of 686 pants for 10 years that are now in better shape than the 150+ dollar pair of V4s that have seen only 20-30 days out.
My saga OG logo jacket however which is also new this season only has a single rip in the elbow from a particularly gnarly spill I took, which leads me to think that the Saga gear is much more durable.
TL:DR - FD wear is not park gear, it WILL rip.