His first foray in earning turns a hike up the Fingers - requires preparation and technical gear up to the task. The Boys' Capilene Heavyweight Zip-Neck has exceptional air permeability, warmth and moisture management thanks to soft polyester/spandex fleece with a grid interior and durable, smooth face; Polygiene permanent odor control manages odor. Self-fabric collar backing and internal neck tape lend comfort. Zip-neck silhouette with deep, center-front zipper allows for quick heat dump; chin guard protects and provides low-bulk comfort. Elastic thumb loops and drop-tail hem provide secure coverage. Slim fit for layering under midlayers and outerwear. Fair Trade Certified ¾ sewing.