From the U.S. Air-Force, B-17 and B-24 bomber aircrafts were unpressurized so the unheated cabins got awfully cold at high altitude. This is why this B-3 sheepskin bomber jacket was invented : it kept the air crews warm during their perilous missions during WW2. The LC1259 allows for high isloation, you can count on it for the coldest winter days. Its old-looking leather gives it a vintage and authentic dimension Leather welted seams Heavy duty hardware 2 front handwarmer pockets