Who is that rocking that Patagonia Women's R1 Air Zip-Neck Pullover? It could be you! Partake in active pursuits in cold weather with this highly breathable, warming, and lightweight layer. The unique hollow-core yarn is weaved with a zig-zag texture for convenient moisture-wicking and quick-drying comfort. It's an excellent choice for layering with its minimal bulk design and venting half-zip. Choose the R1® Air for an improved fit, unencumbered movement, and layer-ability in cold temperatures.