
Marmot's proprietary waterproof/breathable membrane that responds to changes in your body temperature by changing its molecular shape. When you're hot, the fabric pores open up for breathability and when you're not generating heat, the pores close to trap what heat there is inside. Won an Editors' Choice Award (April 1996).
Found on
http://www.encyclo.co.uk/local/21117

Marmots own waterproof/breathable fabric with a very high waterproof rating an a PU film layer as well as a DWR coating.
Found on
https://www.encyclo.co.uk/local/23307
No exact match found.