Simms Polartec Power Shield Pro

Polartec® Power Shield® Pro combines excellent
air permeability with durable hydrostaic resistance
both from within and from out. The Power Shield®
Pro membrane enablesthe fabric to block 99% of
the wind while the remaining 1% cirulates within
">the fabric to enhance moisture vapor transmission
and to improve breathability. At the same time the
fabric is characterized by excellent real water
resistance, keeping you warm and dry all
the while.