The Iron Heart Slim Straight 666 cut in 25oz selvedge denim is truly the number of the beast. Iron Heart's 25oz denim pushes the limits of heavy weight denim. There's no beating around the bush, this fabric starts of stiff and your fingers will get a workout from buttoning it the first few times. But for those who are willing to put in the hard work, you'll discover why this denim is one of the most lauded and revered around. Iron Heart's extra heavy weight is no gimmick, this fabric will soften incredibly while yielding truly extraordinary contrast fading.