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.


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