Medium stiff flex for advanced skiers

this truly is the last jacket you’ll ever need

preventing sweat and rubbing

drop tail hem for added coverage

Arc'teryx Atom SL Womens Jacket 2026 6inch Medium stiff flex for advancedLightest, most packable Atom Jacket for big efforts in cold, wet conditions. Lighter than the original and with the same features as the hoody by the same name (minus the hood, of course), the Atom SL Jacket is one of the most useful (and packable) pieces you can own. Wear it as a standalone layer when trail runs take you through cold, wet weather or layer it with a waterproof shell when mountain pursuits demand additional warmth and mobility.