The Windproof Tech Vest is constructed out of 100% polyester with a bonded fleece lining. With its lightweight construction, and windproof membrane, this vest is an excellent option as a less bulky and more versatile layering garment to block out the wind. Wear as a casual piece or underneath for warmth. Features vertical Magnattach chest pocket with zipper closure, lower pockets with zipper closure, side stretch panels and drawstring waist.