They are very temprmental, they either work or they don't for some, like geetee and a few of the guys I was in the alps with, they though they were amazing. I though mine were pants, really really pants. Also like it has been said before, they eat pads, so if they are going on demo bikes might not be the cheepest. In the alps I got through 3 sets in 5 days of riding, on the other hand, my hope tech motos have gone through one set of pads which was 3 weeks in the alps, 5 uplift days and many hours pissing about in the woods.