Arc'teryx Phase SV Zip Neck Top - Women's - $52.47

Layering for aerobic activity on cold alpine days can be tough: the stop-and-go sweating that accompanies a ski tour, ice climb, or snowshoe expedition means that if you don't have just the right base layer, you'll either shiver or fry. So Arc'teryx carefully crafted the Women's Phase SV Zip Neck top to balance moisture management, insulation, and ventilation. The top's Phasic SV fabric dries in a snap, draws moisture from the skin, stretches easily, and resists odors. Gusseted underarms let you move your arms without the shirt riding up, and a deep front zip lets you adjust airflow during uphill trekking. The Phase SV plays well with others too, gliding smoothly under your mid-layer or shell. - $52.47