Speaking of “Iron Heart” , they are a reputable pioneer of “heavy ounce denim” among of denim fun.Normally denim weight is 12 – 13oz, however they developed 21oz heavy denim in Japan and use for jeans and jacket.
By its high strength & endurance, many motorcycle fun support their denim products.
If you want to import from Japan, please send inquiry through our contact form.
There are many Iron Heart items here.
https://jp.mercari.com/search?search_condition_id=1cx0zHGJpZB0xODA2MA
