from US$415 at 3 shops · in stock in 7 sizes
Lowest we have seen in 90 days: US$415 at Iron Shop Provisions, 13 October 2026.
The IH-634S is Iron Heart's signature jean in their world famous 21oz fabric, and given an overdye in sulfur black dye. This jean features super heavy 21oz denim that is so soft it feels much lighter because of it's loose weave. The break-in of these jeans is easy, despite the weight and heft of the denim.
The 634 cut is based off the 1966 Levi's 501, a straight fit with a medium rise and slight taper at the bottom. These jeans are sanforized, and the dying process takes out any additional shrinking. Known to produce some amazing fades, the 21oz overdyed black fabric is one of the most popular Iron Heart has to offer.
Description from Franklin and Poe.
Shops in United States, Canada.

Iron Heart
14oz Selvedge Denim Straight Cut Jeans IH-634S-142 - Indigo
from US$335 · 4 shops
W29 to W42 in stock

Iron Heart
IH-634S Iron Heart 21oz Selvedge Denim Straight Cut - Indigo
from US$385 · 4 shops
W28 to W38 in stock

Iron Heart
IH-666S-21 21oz Selvedge Denim Slim Straight Cut Jeans - Indigo
from US$385 · 3 shops
W29 to W42 in stock

Iron Heart
18oz Vintage Selvedge Denim Straight Cut Jeans IH-634S-18 - Indigo
from US$385 · 3 shops
W28 to W44 in stock