Have you ever wondered how Iron Heart denim is made? Take a peek inside the Kuroki mill in Okayama, and we'll walk you through the entire process. From raw cotton yarns to final weave, this video offers an insight into each stage of production. With integral steps including spinning, rope-dying, rolling, weaving and sanforization, you’ll be amazed at how complex the creation of Japanese selvedge denim is - and all that before we can even think about making a pair of jeans!