We make our jackets using world-class materials, which are some of the best on the market worldwide in the field of membrane fabric technologies- Dermizax, Entrant DT, Entrant DT and others. During manufacture the waterproofness of seams is checked very carefully, seams are welded using a special tape. We use high quality YKK and Salmi waterproof zips, including haberdashery accessories, as a matter of course.