Large - Marsh Pattern - only worn once Engineered with WINDSTOPPER fabric and a micro check backer, the SITKA WF Dakota Vest, Optifade Waterfowl (30025-WL) is part of Sitka Gear's Waterfowl line. This vest blocks skin piercing icy winds as an outer layer or acts as a cozy insulation layer under other clothing.Perfect as an outer piece on those chilly early to mid-season hunts or as an insulation piece in the late season, the versatility of this garment will ensure you can focus on calling birds in, not keeping yourself warm. The DWR water repellent finish will help protect you in less than ideal conditions, while a micro-grid fleece backer provides additional warmth, without bulk.