The IH-634S is where it all started for Iron Heart: Shinichi Haraki's first jean for the brand, combining their signature 21oz selvedge denim with a classic straight cut inspired by the 1966 Levi's 501. Built with a double-twisted weft yarn and low-tension weave, the 21oz fabric is heavy and tough while remaining surprisingly soft and breathable, molding to the wearer's body over time in a way few other jeans can. Medium rise, straight through the leg with a slight taper from knee to hem, and a wider leg opening that pairs naturally with most boots, this is a classic jean that can find a place in anyone's closet.
- Traditional straight leg cut
- 21oz Japanese selvedge denim
- Sanforized fabric
- Indigo rope-dyed warp yarn, white weft yarn
- Denim will fade naturally through wear and washing
- Button fly
- Iron Heart branded tack button at waistband
- Works Inc branded pocket rivets
- Hidden rivets
- Poly/cotton stitching
- Single & double needle chain stitch construction
- Belt loops sewn into waistband
- Heavy cotton pocket bags
- Side seam & coin pocket selvedge
- Heavyweight vegetable-tanned steer hide leather patch
- Belt through design for leather patch
- Completed garment is washed in an aggressive washing machine to remove shrinkage. Little to no shrinkage expected when washed cold and line dried
- 100% Cotton
- Made in Japan
Traditional straight leg, medium rise, full thigh, slight taper from the knee down. Fits over most boots and other styles of footwear. We find that Iron Heart jeans will stretch an inch in the waist after a few weeks of wear, with other dimensions stretching in proportion to the waist.
Measurements provided by Iron Heart. All measurements are in inches. For assistance with sizing, please email info@blkblu.com
Please allow for a +/- 0.5" tolerance in all measurements.
| Size |
28 |
29 |
30 |
31 |
32 |
33 |
34 |
35 |
36 |
38 |
40 |
42 |
44 |
| Waist |
27.8 |
28.6 |
29.8 |
30.8 |
31.7 |
32.5 |
33.4 |
34.5 |
35.5 |
37.5 |
39.8 |
41.2 |
43 |
| Front Rise |
9.9 |
10.2 |
10.6 |
10.8 |
11 |
11.1 |
11.5 |
11.6 |
11.8 |
12.3 |
12.6 |
12.8 |
13.3 |
| Back Rise |
14 |
14.1 |
14.6 |
14.7 |
14.8 |
15 |
15.4 |
15.7 |
15.8 |
16 |
16.5 |
17 |
17.5 |
| Thigh |
11.4 |
11.5 |
11.8 |
12.1 |
12.5 |
12.8 |
13.1 |
13.3 |
13.6 |
14.3 |
15 |
15.5 |
16.1 |
| Knee |
8.4 |
8.6 |
8.8 |
9.1 |
9.3 |
9.4 |
9.6 |
9.8 |
10 |
10.3 |
10.8 |
11.3 |
12 |
| Leg Opening |
7.9 |
8.1 |
8.3 |
8.6 |
8.7 |
8.8 |
9 |
9.4 |
9.5 |
9.8 |
10.3 |
10.6 |
10.9 |
| Inseam |
35 |
35 |
35.5 |
35.5 |
35.5 |
35.5 |
35.5 |
35.5 |
35.5 |
37.5 |
37.5 |
37.5 |
37.5 |
