Durable, lightweight, wind- and water-resistant shell fabric has a DWR (durable water repellent) finish and is made of 100% nylon (92% recycled) with 100-g (60-g in the sleeves) THERMOLITE® ECO92 100% polyester (92% recycled) insulation Twill-tape trim on collar, center-front zipper and front pocket openings Box quilting on body keeps insulation in place Elasticized cuffs keep cold out Shirttail hem with drop-tail feature Size M inside zippered pocket ,hardly noticeable stain but pointed it out in picture