Originally Posted by Zeph
You may want clothes with a higher percentage synthetic fibres. The weat don't soak up a synthetic apparel in the same way.
Shirts should be easy enough to find, but pants may be harder. You also have to consider what color to choose. Beige is a bad color if you want to avoid stains, go for darker clothes. Black, dark grey, dark blue, dark brown etc. Still, a dark pant in cotton will soak up sweat.
It might get very hot, but you could consider trying out some breathing super underwear underneath the pants. They might trap the moisture and prevent it from soaking into the outer pant.
The ideal would be as much synthetic fibres as you can find. Most of my Nike pants are made out of 50%+ cotton, but I got one pair (Nike Low Rise Slim) which got 95% polyester and 5% elastan (elastic fibres). It still shows if I dab some water on it, but it will disappear faster. Perhaps something like that combined with something underneath to take up most of the sweat.
I also got a pair Peak Performance 100% cotton pants. They are dark blue and with a pattern, so moisture won't be as visible, but it will also hold the sweat, so it might be a bad fit.
My best bet is on a dark pant with a pattern and a high percentage synthetic fibres.
Combined with something underneath to take up most of the sweat might also be a good match.
I don't have the same sweat issues as you, but I can not wear bright colored shirts in cotton. They get pit stains very quickly. I usually wear synthetic or a combination with wool on the course, on legs and torso.