The polyester fill in the legs of these Dickies?? overalls will keep you insulated and warm.. . ??. . . 100% cotton; sanded duck; weight: 8.5 oz.. Chest lining: 100% poly-brushed tricot. Leg lining: poly-taffeta quilted to polyester fill; weight: 5.25 oz.. Zipper extends to the knee. Double knees with a convenient clean-out opening. High cross-back suspenders for a fit that won't ride down. Elastic front straps. Durable triple-stitched seams. Style #:??TB244??. 29311260170 22357600060 TB244