Updated with a deeper zip for even more ventilation capability, the Women's Columbia Silver Ridge Knit 1/2 Zip is a pretty, technical piece that's perfect for mixing, matching, and layering. Blending simple aesthetics and progressive performance elements, this top features a long, sleek cut and flattering seaming lines. A unique, two-toned yarn delivers a richly textured effect. Anti-microbial properties and Omni-Dry(R) advanced evaporation ensure that this lightweight basic keeps you cool and comfortable at the height of sweat-infused activity. Plus, Omni-Shade(R) sun protection creates a comforting barrier between your skin and harsh UV rays. Active fit.