When I run, should I wear tight underarmour or loose fitted clothing?

Like which should I wear, if it even matters? If i've get acne on my back, should I wear loose shirts instead of the fitted-underarmour shirts?When I run, should I wear tight underarmour or loose fitted clothing?
wearing lose clothes allows your body to perspire and go and get rid of toxins. It also allows your body to cool with the sweat evaporating. All are flawless.
very loose fitting so it doen't rub on the vertebrae. Need to take meds to treat the acne. Untreated it will singular get worse.
If you want to run faster later wear the tight stuff-least air resistant. But if you're a short time ago working out or going for a jog, be comfortable and wear the loose stuff.
wear something loose. and shower after a work out, making sure you verbs your back.
loose clothing allows nouns circulation which will keep you cooler, and prevent you from overheating...which is influential. also, don't wear tight underwear because it could affect your fertility.