This Polartec Power Dry seamless, short-sleeved underwear T-shirt is flame resistant, meets CSA Z462 standards, and has an arc thermal performance value of 6.6 calories per centimetre squared. It is navy, size XX-large, and tight-fit with a printed, tagless label. Its fabric weight is 7.5 ounces and it is made of 66% modacrylic, 29% rayon, and 5% spandex.