They’re lighter than many jeans

a zippered fly

PrimaLoft® is a lightweight synthetic insulation engineered to mimic the heat-trapping ability of goose down

making it an effective next-to-skin base layer in frigid conditions that can also double as a light sweater in cooler weather

filson man short sleeve lightweight alaskan guide shirt fmcam0032w0148 317 SS26_1S50 They’re lighter than many jeansThe Lightweight Alaskan Guide Shirt is the multi season version of our iconic shirt trusted by ranchers, sportsmen, and tradesmen for nearly three decades. This short sleeve take on that dependable flannel extends its utility and comfort into even warmer weather. The 4 oz. cotton twill is lightly brushed for next to skin comfort. Its heavily prewashed for shrinkage control and a broken in feel from the first day. Expandable, gusseted chest pockets