Season after season, Gitman returns to the same 8oz dark denim fabric. It's proudly woven in the USA from 100% cotton twill and uses a natural indigo dye to achieve its distinctive blue hue. It may not be as heavy as denim you’d find in jeans or type-1 jackets, but that’s precisely why Gitman keeps returning to it. As a shirt fabric, it's simply perfect. Light enough for year-round wear and heavy enough for a lifetime of use, they believe denim shirting does not get better than this. American-made, indigo-dyed, and heavyweight. Gitman's Dark Denim fabric doesn’t have any bells and whistles, it’s just made exactly as denim should be. But unlike denim used for jeans, this is a bit lighter to accommodate the movement and range of motion required for comfortable shirts. Expect a break-in period that will make this fabric soft and supple. Slight fading will occur over years of wear and washing. Specs: 100% cotton Barrel Cuffs 18 stitches per inch Two button-through chest pockets Flat felled seams 4.5" adjustable sleeve gauntlet Extra thick chalk buttons Split Yoke Unlined collar and cuffs Point collar Lined placket Locker loop Pre-washed, pre-shrunk Rear center box pleat Made in the USA