IH-634S - 21oz Selvedge Denim Straight Cut Jeans - Indigo

[Giles]

@Thor

Send a mail to shop@ironheart.co.uk, or start a "Chat".

The CS team know our cuts better than anyone else, period, and answering specific questions like this is part of their job

[Thor]

Thanks all - may have to do the dual order. Had hoped to get through to Rivet & Hide but probs wont be for the next few months.

[jimcord]

Finally gave in and got a pair of 634s. First pair of IH denim. I now see what all the talk is about. What a great fit, great texture to the denim, strangely buttery soft to the touch! The next rabbit hole. I am interested to see how they age :). First if was UHF, then wabash, then shirts, 21oz sashiko,thermals, them type III jacket. Thats how it all begun……

[Graham]

LIMITED RESTOCK

[ice.rockster]

Heyy, my first 634S and my first IronHeart ever! Really enjoy the tenderness yet strong of the fabric, also functional in cold weather. Love it!

[BokBerry]

This post is deleted!

[eemmmiiee]

@serkanm Hi. I was wondering if you could tell me your true waist? I am deciding my size on these pairs. My true waist is 31-32. I am thinking about 32, just worried about loosen with wearing.

[Dick Laurent]

Hi, I am new to the forum - I have been interested in getting a pair of 634s but the inseams currently seem to be around 34” and I think I would need at least a 36”. I have heard that different batches can come in different sizes, is this true?

[Giles]

The inseam will stay plus or minus a little bit from what it says in the sizing table.

If you want a longer inseam, then look at some of the other 634 variants:

https://www.ironheart.co.uk/bottoms/IH-634S-18.html
https://www.ironheart.co.uk/bottoms/ih-634n.html
https://www.ironheart.co.uk/bottoms/ih-634s-142.html

If, it is specifically the 21oz you are wanting, then look a some other cuts:

https://www.ironheart.co.uk/bottoms/ih-888s-21.html

etc etc etc

You will find more if you look around, but I don't know what you specific requirements are....

[Tago Mago]

@Dick-Laurent one thing you may want to consider: are you looking at tag sizes or actual measurements? Take a minute and check out this video on how to measure a pair of denim that fits you and then compare those measurements to the sizing charts:

https://www.ironheart.co.uk/content/how-we-measure-bottoms

[neph93]

@eemmmiiee true waist is a poor metric to use when sizing. Measure a pair of jeans that fits you, using the IH measuring methods, then base your choice on that.

[eemmmiiee]

@neph93 Thank you very much. I did that. I was just wondering about the shrinkage and stretch out of this fabric.

[wjw]

@eemmmiiee with the 21oz, very unlikely to get any noticeable lasting shrinkage. Easily stretches an inch in the waist. If you have a lot of pressure on the waist you could probably get an inch and half of stretch give or take. My 5 year old pair of 21oz waist is 1.5inches bigger than they were originally. I think anything over 1.5inches would be if you were actively/forcibly trying to stretch them.

But as many would say here, shrink and stretch isn't an exact science and everyone's adventure differs. I would plan sizing for about an inch of stretch in the waist. If you don't wear a belt, or have a belly like me exerting force on the waist, maybe plan for an inch and a half. And go off your best fitting jeans measured IH way rather than your true waist as @neph93 recommended

[Brandrea]

I guess my experience is a bit different. I own two pairs of 63421S and they measure just about the same in the waist as when I bought them. Mind you, I didn’t buy them with the expectation that they’d stretch out so they aren’t really under any kind of tension when I’m wearing them.

[wjw]

@Brandrea good point. All depends on if there is tension/force exerted on the waist

[eemmmiiee]

@wjw @Brandrea I truly appreciate your clarifications. These are very helpful.

I own jeans and jackets from other brands. They tend to stretch after multiple wears, but after a couple of washes, they seem to shrink. Also, I usually wear slim fit. This will be my first straight model.

[wjw]

@eemmmiiee they will definitely tighten up in a wash, but they'll stretch back out to prewash in a day or so

[Brandrea]

@eemmmiiee you’re going to love them, me thinks.

I have 4 pair in the 634 cut. They’re my favourites

[BokBerry]

It is here! 3 days to Vancouver BC! Thank you @Graham

Measurements are spot on.
Abit snug on the waist but i know it will stretch out (my 888 stretched to to 35”)
Tag:33
Actual:
W: 33
FR: 10.8
RR: 15
TH: 12.9
KN: 9.3
HE: 8.8
IN: 34

May 31, 2025 Update:
Tag:33
Actual:
W: 35
FR: 10.8
RR: 15
TH: 13.0
KN: 9.5
HE: 8.8
IN: 34

The tagged size 33 has stretched to a very comfortable 35" waist ansd thigh stretched 0.1, i am very happy with the fit.

[Denman John]

I bought these 634S-21 at the beginning of 2024 while I was in Japan and just recently put them into rotation last month. I had them hemmed and thought I’d post a few pictures. Coming from 822 and 805, the front pockets took some getting used to, while also feeling “lite” in comparison. I like the hemmed look/feel so much that I took my 822 in to get hemmed. No more coming home with half the forest hiding in my cuffs.