This is the first product of theirs I have owned. I noticed all the Actors on the latest Bourne Supremacy were wearing OR stuff. I looked it up and turns out it's a new company. Well new to me! Incredibly durable. My first thought was that the outer layer was neoprene but turns out it's really breathable fabric almost like artificial skin . The good, is everything is bonded together including the inner lining being bonded to the exterior. The bad is no is no zips for the arm pits.