While Iron Heart is keeping details of the process a deep dark secret

and can be worn by itself

5oz denim woven on old shuttle looms

The body of the jacket tapers towards the waist creating a clean modern look that's not too boxy

this is old school

The Flat Head 3002 Slim Tapered - 14.5oz Selvedge Denim (Unsanforized) sa While Iron Heart is keepingThe Flat Head Pioneer 3XXX jeans are a 14. 5oz denim woven on old shuttle looms. This denim is full of character and famous for its fast, high contrast, vertical fading. Even the pockets are designed to age uniquely, as they are specially double stitched first with a poly cotton thread for strength, then with a cotton thread that will shrink, leading to puckering that helps with the fading. This denim is unsanforized and will shrink up to 1. 5" in the