The classic Open Weave Heavyweight Flannel Overshirt will fit right in on crisp fall afternoons hitting the trail or the town. With a true overshirt fit, this durable snap-button open weave is built like a chore coat for layering up during deep-winter lows or rocking solo through shoulder season. Whether you feel most at home cozied up on the couch or exploring the great outdoors on two feet or two wheels, this cotton twill flannel overshirt is for you.
Heavyweight open-weave brushed flannel
100% cotton for durable comfort
Style Variants
Available Colors: Birch Bark
Size Reference for Marmot Overshirt (Fall 2025)
Available Sizes: S, XL, XXL



















