Our duck zip-to-waist biberall is quilt-lined for comfort. Made of 12-ounce,
rugged 100% cotton duck, itβs lined in a midweight nylon-quilted polyester. It
features zip-to-hip leg openings with wind flaps and snap closures and double
knees with cleanout bottoms to accommodate knee pads. Main seams are
triple-stitched for durability.