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Tipping the scale at a meager 13-ounces, the Ortovox Ortler 3L Jacket brings us superior waterproofing and breathability bolstered for highly active sports like backcountry touring, ice climbing, and mountaineering. Its Toray Dermizax membrane boasts extreme waterproof ratings and even better breathable ratings to keep us comfy if it starts snowing on the ascent. We like that Ortovox added merino mesh paneling for excelled thermal regulation, moisture management, and odor-resistance after demanding adventures.