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.


Borax can work pretty good. It’s safe. Just use as directed my friend. Less can be more. And lots of hot water. Fill the washer only half full of clothes but running on the full fill cycle of water.
Yea, polyester is a pretty terrible fabric. I prefer cotton or wool.
I used to work in a laundry. I don’t think you want those chemicals anywhere near you. But that’s an option.
I always preferred the pressurized washers. The clothes always came out clean. Not necessarily stain free but they didn’t smell bad and the texture was good and clean.
I guess the reason I got polyester is because it dries so fast, making it a bit better for hiking and sports for me (I sweat a lot) Wool would be great, especially merino. But it can be so pricey and It tends to be itchy for me.
Haven’t found something good as a replacement yet.
You want linen, but it’ll still be pricey. Might be able to find something second hand? Linen is capable of truly remarkable evaporative cooling and is amazing for getting rid of moisture and sweat