The Iron Heart IH-666S-21 jean is proof that the devil's in the details. Nicknamed the "Devil's Fit", this jean features Iron Heart's signature 21 oz. denim in a modern slim straight cut. This denim is heavy, but features a double-twisted weft yarn that creates a super soft denim, meaning the initial break-in period is a breeze. The fades on this denim create a look that is classic and timeless due to the heavyweight denim and dying process.