Team NFL Chicago Bears Letterman Jacket Coat - Size XXL - 75% Wool, 25% Nylon - sleeves are leather. Lining is 100% nylon and trim is 100% acrylic. Great looking jacket with no visible rips, tears or stains. Trim around color and sleeves does have some discoloration from normal wear over the years. Back of left arm has a dirt spot as well that might be able to be cleaned by a dry cleaner/leather specialist. Get this in time for the start of the season that is shaping up to be the return of the Monsters of the Midway.