W's Lightweight R4 Jacket Size:S while stretchy R1 panels under

while stretchy R1 panels under the arms provide freedom for your most limber moves

The new ripstop polyester fabric is lightweight

compressible and provides superb core warmth

(performance-enhancing film) barrier that delivers the weather-resistance of a shell

and has a slightly brushed interior for warmth and wicking

W's Lightweight R4 Jacket Size:S while stretchy R1 panels underBlock the wind and stay active without excessive heat buildup in this lightweight, stretchy version of our popular R4 Jacket. Non windproofed Regulator R1 underarm panels enhance breathability and mobility; the neck gasket closure seals out the elements; seamless shoulders allow pack wearing comfort. With three extemal pockets, two drop in intemal pockets, a drawcord hem and a trim but regular fit. The women's version is femininely shaped. Made in USA.