Description of Patagonia R1® Flash Pullover Patagonia's Men's R1 Flash Pullover: A technical pullover designed as a baselayer or light mid-layer for a variety of alpine pursuits. Between colorful trails, crisp granite edges and verglas, some people wish October would last forever. If it did, the R1 Flash Pullover might be the only top you’d ever need. Its high/low grid interior stretches, breathes, moves moisture, and insulates whether worn next-to-skin, with a thin baselayer or as an insulating midlayer when November rolls around. Low-grid polyester stretch panels under the arms and at the wrists and hem decrease bulk and increase breathability. With an external mesh-lined chest pocket. Recyclable through the Common Threads Recycling Program. Features: Versatile R1 fleece provides excellent stretch, warmth, wicking and breathability in a variety of temperatures High/low interior grid-structure enhances compressibility, airflow, and dry-time Jersey microfiber face allows non-binding layering Capilene® 4 stretch panels under arms, at cuffs, and hem for reduced bulk and increased breathability Deep, center-front zipper offset for next-to-chin comfort External pocket: one mesh-lined chest Raglan sleeves for comfort under pack straps; Capilene® 4 cuffs for low-bulk under gloves R1: 6.5-oz Polartec® Power Dry® 98% polyester (60% recycled), 2% spandex. Capilene® 4 stretch panels: 5.3-oz 98% polyester (50% recycled), 2% spandex. Recyclable through the Common Threads Recycling Program 281 g (9.9 oz) Made in Colombia.