I purchased the Phoenix Fly Pants specifically for a Norway trip this summer. I spent last week wearing them skydiving. They are really a good design. Instant inflation, huge tracking speed. My protrack registered an average freefall speed of 80mph, and my freefall time (from 14K) was in the 100 second rage! I was easily able to track the length of a very long runway, and for fun would track out over the highway and pass cars.. of course I was at 10,000 feet and they couldnt see me, but it was quite a fun feeling. The highlight was the clouds that rolled in, and I got to fly in, out, and around them. I did not purchase the jacket, but I easily give the pants a 5 out of 5!