From hiking to layering up for the day, the Patagonia Capilene Midweight Zip Neck Top is a comfortable base layer that keeps us warm and comfortable. Made with a recycled polyester fabric, the Capilene Midweight Zip Neck Top has a diamond grid knit fabric to trap our heat while remaining breathable and moisture-wicking. The quarter-zip collar closure and the standup collar provide extra comfort and allow for an easy exit and entry, while the thumbholes on the sleeves ensure our sleeves stay in place.