As I've said before, I'm new to cycling, 21 years old, 6'1" and about 210 lbs. I just signed up for a local 20 mile ride in Philadelphia (which would be my longest ride ever, sadly). I'm looking into getting some bicycle shorts to wear under regular gym shorts to make my experience a bit more comfortable. I'm looking to spend around $20-30 if that's even possible. Any tips or suggestions are more than welcome!