DuluthFlex Daily Denim Flannel-Lined Jeans: Turn Up the Heat on Winter Leave it to Duluth innovation to banish saggy pants AND winter shivers. Because now we've winterized your favorite, free-flexing Daily Denim with plush, brushed plaid flannel. Our advanced S Gene™ yarn technology creates a fabric that's incredibly stretchy, yet has 2X the rebound ability. No more slouchy knees or droopy derriéres! We've even added a smidge of spandex to the fluffy cotton flannel lining, and stitched it securely in place so it'll flex without bunching or chafing. New straight leg silhouette fits nicely over shoes, or cuff up the legs to let the bold buffalo check flannel peek out. Features 9.75-oz. DuluthFlex® Daily Denim with S Gene™ technology is 2X more resilient – virtually eliminates "saggy knee syndrome"! Cotton/polyester/spandex fabric fits your shape, frees you to flex Fully lined with toasty 98% cotton/2% spandex flannel that’s stitched in place to stop bunching Duluth's waistband won't gap in back; sits just below the natural waist 1/2"-wide belt loops, including a "V" loop in back that keeps your belt from riding up Mid rise; trim hip, straight leg Five pockets Machine wash Imported from seller: these are great for hard work on cold days. love these but they no longer fit. excellent used condition with no known flaws size 16x31. insulated