The Grundens Dungeness Seawool Flannel is a versatile button-up shirt designed for mild-weather comfort across changing seasons, whether on the boat, by the river, or off the water. Constructed from a soft tri-blend of cotton, spandex, and recycled Seawool yarns derived from oyster shells, it combines light stretch with enhanced moisture management and temperature regulation for comfortable all-day wear. Its sustainably focused construction also incorporates recycled marine materials while maintaining the relaxed feel of a classic flannel.