FULL GRAIN LEATHER JAC-SHIRTA rare full grain leather variation of our iconic classic. Our original wool Jac Shirt was introduced in the 1970s and has served in more weather conditions than we can count. This special edition leather variation adds a whole new level of durability to that classic. The thick Italian aniline leather is treated with oils and waxed during the tanning process to give it a supple, soft hand that will patina and improve with use. Only the best hides are