I like Cargo Shorts and a long sleeve shirt. The long sleeve for Sunscreen kinda protection and at least a layer between you and anything that might want to scrape you up. For mountain biking I like heavier material shorts for a bit of protection is you slide on the ground. It doesn't happen often, just at the dumbest times when I didn't think it could happen.

I used to wear Basketball shoes for ankle support, but a grumpy ole dude around here had a minor problem with it. Now I wear sticky bike specific shoes like Pearl Izu's and 5.10's.

Go build up a good sweat and let us know how it went. Don't worry the little stuff.

What part of the country do you live in. I'm in the desert SW and wew love cotton this time of year for the cooling effect. But if there is humidity where you ride, avoid it like taxes.