This jacket defies pigeonholing. Made from an exclusive Polartec fabric with a smooth-faced, gridded outer surface, the Dual Aspect performs like a softshell but is way more comfortable for breakfast-to-bedtime wear. It works as a cold-weather midlayer, a breathable shell for highly aerobic winter sports, and a standalone, light insulator in mild temps. We used it over just a baselayer during a tough uphill tour to Colorado’s Skinner Hut. “Temps ranged from about 20 to 35°F and I was carrying a 50-pound pack,” our tester says. “While the rest of the crew was constantly changing layers, I cruised the whole way—five hours of uphill—in the Dual Aspect, without ever having to adjust.” That’s because body heat moves easily through the thinner areas in the gridlines, but the tight weave creates a microclimate against your skin. It’s like our long-time Patagonia favorite, the R1 (a baselayer that moves moisture incredibly well), but with better weather-resistance and warmth. The DWR on the jacket’s densely woven, exceptionally abrasion-resistant surface helps it repel precip like a conventional softshell.