The Women's Lightweight R4 Jacket's fabric provides windproof protection for cold conditions in a single, stretchy package. When the wind howls and the mercury plummets, keep cranking in our mobile and windproof Lightweight R4 Jacket. A low-nap microfleece face and high/low grid interior sandwich the Polartec Windbloc laminate, while unlaminated R1 fabric (now made with recycled polyester) underarm panels enhance breathability and mobility. A neck gasket seals out the elements, and seamless shoulders allow pack-wearing comfort. With three external pockets (the hand pockets stay clear of your harness), two drop-in internal pockets, a drawcord hem and a slim, feminine fit that accommodates light underlayers. 100% recyclable through the Common Threads Recycling Program.