All limited flammability cotton apparel is made of 9 ounce green cotton. The 39030 welding jacket is made of 100% cotton and is cool, comfortable and can be laundered. The snaps on this jacket have been anodized, improving corrosion resistance and wear resistance. These products provide economical protection from light molten splash and sparks. If you are looking for the best welding jackets, look no further than MCR Safety welding gear options.