This is a polyester shirt from the Uniqlo airism range.
I like the shirt, but recently it got these spots on it? Is this from sweat?
This picture is after washing with lots of detergent.
Is there a way to get it out?
It seems to disappear after a while, but comes back after washing.
The shirt also smells ok, but after wearing it for a short while it starts smelling.
You might be right, it mentions 89% Polyester, 11% Elastane.
I did notice that the discoloration almost completely disappears after hanging it outside in the sun for a few hours.
It still gets very smelly as soon as I wear it though (which is not the case with the newer ones) but maybe that’s just polyester in general?
Okay yeah, that would be my guess as to what that is then. Honestly, not sure why it goes away for you, as my elastane/spandex blend clothes have just been relegated to the “house clothes” category now. I could be wrong but it looks just like it from what I can see.
Polyester does hold on to scents like crazy in my experience. If it’s not washing out try some isopropyl alcohol in a spray bottle and giving it a spritz. Different textiles all have different properties, but I almost always recommend natural fibers for most purposes.
Do you use fabric softener? Or dryer sheets?
No. I generally don’t use either