Shop 6397 Duofold Cotton-blend T-shirt from 800+ stores, starting at $246. 6397's Duofold long-sleeve T-shirt is crafted in two layers of navy cotton-blend jersey. Crewneck. Panel construction at long sleeves. Banded cuffs. Slight shirttail hem. Pulls over. Available in Navy. 50% cotton, 45% acrylic, 5% wool. Machine w…