- Men's biker jacket by Aviatrix, ultra-soft and made of 100% genuine leather, the shoulders are diamond quilted - 100% Genuine Genuine Super Soft Sheepskin Leather - Collar and cuffs close with press studs - Two pockets inside. The size can be adjusted on the sides - Available in a range of sizes, S, M, L, XL, 2XL, 3XL, 4XL, 5XL, 6XL - If the jacket is not for, we offer a free exchange service