100% Nylon, 100% Recycled Polyester ORIGINAL MAD BOMBER HAT We built our reputation on this hat! Mad Bomber is the original and largest manufacturer of the bomber hunter trapper style winter hat! RECYCLED We’ve reflected our love for the planet earth by using only 100% recycled quilted Polyester to line each these cold weather winter hats. WEATHER RESISTANT A 100% Nylon shell and an 80% Acrylic 20% Polyester faux fur lining provides the ultimate in warmth and protects against winter weather conditions. CHINSTRAP Use the chin strap to hold your hat in place, keeping you snug and warm. Want to wear your hat cap style? Pulling the strap up to the top allows you to wear this winter hat cap style! EARFLAPS Wear the earflaps down over the ears for maximum warmth or flip them up and snap into place on top of the head.