Black Diamond M Project Lined Flannel

A flannel overshirt for climbers and backcountry travelers who need substantially more warmth than a standard flannel layer without committing to a synthetic or down midlayer, the Black Diamond Men's Project Lined Flannel combines a 100% cotton brushed flannel outer with a 100% polyester sherpa fleece interior for warmth that stands on its own without requiring a separate midlayer. A nylon sleeve lining reduces friction when pulling the flannel over a base layer, and the boxy fit accommodates a light additional layer underneath for the coldest crag mornings. Snap closure operates cleanly with gloves on, and a single chest pocket carries a guidebook page or map without adding front-face bulk at the belay.