WINDSTOPPER FABRIC
A microporous membrane used as a laminate to form a very breathable & durably windproof barrier. WINDSTOPPER® garments provide up to 2½ times more thermal insulation than conventional non-laminated garments.
Snow and water resistant
Outer shell 
WINDSTOPPER™ membrane 
Inner layer
See more of the technology used in Musto's clothing: Gore-Tex®, Polartech®, and Breathable Fabrics.