" Dressed for the minus-thirty-degree temperatures at high altitude (wool underwear, two pairs of wool socks, a wool sweater, a brown leather jacket lined with sheep’s wool, and heavy trousers), Roane crossed the cold, fog-ridden airfield and gathered with the other pilots and aircrews in the huge Nissen hut used for briefings. "

― Neal Bascomb , The Winter Fortress: The Epic Mission to Sabotage Hitler’s Atomic Bomb