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For advanced brain safety
providing just enough protection for hard surfaces
mock neck style
HRZN Tech Tip – HRZN Tech adds 10% more surface area at your ski tips
Arc'teryx Atom SL Womens Jacket 2026 size_bronze-mirror For advanced brain safetyLightest, 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.