Men's Montana Loose Fit Washed Duck Active Jacket Mua Men's Loose Fit Washed Duck Insulated Active Jacket trn Amazon M Carhartt Men's Full Swing Loose Fit Washed Duck Fleece Lined Active Carhartt Men's Full Swing Loose Fit Washed Duck Insulated Active Jacket. Warmth Rating Earned: Level 3 Warmest Engineered For High Warmth in Severely Cold Conditions. See Technology section below for more details. When you're bucking hay or swinging a framing hammer, you need a jacket that gives you the freedom to move. This men's insulated jacket is made of water repellent stretch fabric that's lighter than our sandstone duck and every bit as durable. Stretch panels on the back, sides and elbows allow for a full range of motion when you're on the job. Previously known as the Full Swing?? Cryder Jacket.