@indigostiff Yea, but it's in physics and not chemistry.
Posts made by DrPat
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RE: IHT-1600-WHT - 11oz Cotton Knit Crew Neck Short Sleeved T-Shirt - Whiteposted in Cut & Sewn
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RE: IHT-1600-WHT - 11oz Cotton Knit Crew Neck Short Sleeved T-Shirt - Whiteposted in Cut & Sewn
@will6er It’s a medium. I didn’t measure before and after washing but I didn’t notice and drastic shrinkage.
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RE: IHT-1600-WHT - 11oz Cotton Knit Crew Neck Short Sleeved T-Shirt - Whiteposted in Cut & Sewn

I managed to get rid of the stains on my shirt. I did 3 overnight soaks in oxygen bleach followed by 3 washes on a medium cycle at 40 degrees. This removed about 90% of the yellow stains. However, the blue stains in the armpits were still there because the oxygen bleach was not strong enough to break down the indigo.
I then soaked the shirt for 15 minutes at 60 degrees in sodium hydrosulfite, which partially reduced the indigo by removing oxygen and turned the stains pink. If it indigo was fully reduced, the stains would have turned yellow. I then rinsed the shirt to remove the sodium hydrosulfite. If I had let the shirt dry, the indigo would have slowly oxidized and return to blue. Instead, I put it back into a bucket of oxygen bleach. Even though oxygen bleach performs the opposite chemical reaction as sodium hydrosulfite, the oxidation was quick enough that it was able to break down the indigo in its weakened state so the stains were removed instead of turning blue again.
I then washed the shirt with a hard wash at 60 degrees. Afterwards, the yellow stains were invisible and the indigo stains very faint.
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RE: IHT-1600-WHT - 11oz Cotton Knit Crew Neck Short Sleeved T-Shirt - Whiteposted in Cut & Sewn
@Stringthing75 I live in a cool and cloudy environment and don't usually wear sunscreen, but thanks for the suggestion.
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RE: IHT-1600-WHT - 11oz Cotton Knit Crew Neck Short Sleeved T-Shirt - Whiteposted in Cut & Sewn
@Brandrea @indigostiff the blue armpit stains are due to indigo transfer. I wore an indigo shirt with my leather jacket and then this t shirt. Otherwise, I didn’t wear this shirt with anything unusual.
From what I’ve read, white clothes can turn yellow, similar to paper, due to oxidation. This can be accelerated if not all the oils and sweat have been removed when washing. I usually washed this shirt on a delicate cycle, so that could be partially responsible.
I soaked it over night in oxygen bleach and it helped a lot. I may do it again or try chlorine bleach.

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RE: IHT-1600-WHT - 11oz Cotton Knit Crew Neck Short Sleeved T-Shirt - Whiteposted in Cut & Sewn
My shirt has become discolored and I’m trying to figure out the cause. If anyone has some insight, I’d be grateful.
My first guess was sweat since it was most pronounced around the collar, but it also shows in other places and it’s not a problem with my other white t shirts. I also suspected that it had something to do with my wood closet since the discoloration seems to align with the fold lines, but none of my other white shirts in that closet show this. Strangely, it’s absent around the tag but pronounced on the tag stitching.
I bleached the shirt a few years ago and it’s worsened since then. I will most likely end up dying it.


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RE: Iron Heart Germany Collab Release Party in Hamburg April 2026posted in Iron Heart Meet Ups & Travel
@Kasi how was the honest kebab? Usually the line is a mile long and I’ve never had the patience to wait.
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RE: IH-684S-16-GER - Iron Heart Germany 16oz Selvedge Denim Relaxed Straight Cut Jeans - Indigoposted in Bottoms
@Davieaston The the page will reappear at 5pm German time and the jeans will be able to be purchased at that time.
After loading the inventory we've got to take the product page offline or else the product would be immediately purchasable.
We would like to have a way to load the inventory, make the product visible but not purchasable, and automate the transition to purchasable at a certain time, but haven't found a workable solution yet.
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RE: IH-684S-16-GER - Iron Heart Germany 16oz Selvedge Denim Relaxed Straight Cut Jeans - Indigoposted in Bottoms
For technical reasons, two separate product pages for the 684 were created and only one was updated with the correct measurements. I've put the correct measurements on both pages and they should now be visible on the website.
Here are the correct measurements. For all dimensions except the waist, two separate jeans were measured and the average was used. For the waist, the average waist measurement of all jeans was used.

We were worried about the variance in the waist so I measured the waists of all the jeans. With my blue fingers and sore thumbs, I created the table below to summarize the findings. Since the waist for some sizes can vary over 3cm, please contact the shop if you are ordering online and would like a pair that runs big or small.

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RE: IH-684S-16-GER - Iron Heart Germany 16oz Selvedge Denim Relaxed Straight Cut Jeans - Indigoposted in Bottoms
@Kasi I totally forgot about pineapples, but it looks like you haven't. Great to hear that experience left you with such positive memories

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RE: Iron Heart Germany Collab Release Party in Hamburg April 2026posted in Iron Heart Meet Ups & Travel
For Sunday morning brunch, here are a few possibilities.
- Karlsons (https://www.karlsons.de/). Scandinavian cafe a few minutes from the store.
- Amber Cafe (https://www.ambercafe.de/) 10 minutes walk from the store in the direction of the river
- Mimosa Brunch Club A few minutes from the store but it looks like it's already booked on Sunday morning except for the 9am time slot.
- Cafe Johanna (https://www.cafejohanna.de/) 10 minutes walk from the shop. No reservations possible.
Are some people arriving on Friday. If so, we should also consider arranging something to eat on Friday evening.
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RE: Theme Week March 2-6 - Show us What You've Got....posted in What Are You Wearing Today (WAYWT)

My first shirt was the IHSH-07 bought in 2009. Giles even tried to upsell me the matching pants
.I’ve also included several flannels from the same time period in the photo.
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RE: Storing your denim for the long termposted in General Chat
Jeans are folded for storage in the IH Germany store. No damage is done.

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RE: Shipping & Deliveriesposted in The Resource Centre
Will the recent US Supreme Court ruling on the illegality of the current tariffs have any effect on Iron Heart shipping? Unfortunately, it looks like the de minimis exemption will remain in plaice.
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RE: The Evolution of Iron Heartposted in General Info About Iron Heart Products
Are there any photos of faded black Wabash out there? I've got some shorts that I've worn for a few months but I don't see any fading.
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RE: Iron Heart Loyalty Vouchers - 2026 and Beyondposted in News
An hour video call with an IH staff member of your choice.
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RE: Iron Heart Update - 2026posted in News
Is production still suffering from foreigner workers leaving during COVID or is there something else currently going on in Japan?
Good luck with everything!
