Windproof and stretchy, Lightweight R4 better suits high-output endeavors in blustery weather than its burlier R4 counterpart. Non-windproofed R1'\\\" underarm panels on the jacket enhance breathability and mobility; the neck-gasket closure seals out the elements; seamless shoulders allow pack-wearing comfort. The jacket has three external pockets, two drop-in internal pockets, a drawcord hem and a trim but regular fit. The vest's unlami- nated side panels and collar enhance next-to-skin neck comfort and breathability; shoulders are seam-free. Made in USA.