NWT Patagonia Women's Lightweight A/C Shirt. Size Small. Made with a blend of ultralightweight 95% organic cotton/5% hemp, this crepe-woven shirt has a slightly raised texture to keep fabric lifted from skin. Breathable and Nearly Weightless Fabric Ultralightweight organic cotton crepe-woven fabric has a touch of hemp and a breathable, linenlike texture. Relaxed and Boxy Fit Modern oversized boxy fit without true armholes for an incredibly comfortable fit; hem is rolled and tacked.