Hey! I'm new to the forums and new to cycling - I've gotten into riding this season. I used to be a runner, but it became too painful and frustrating. So this spring I pulled out the hybrid that I got last year and up until then only used it to pull the kiddos in the burley around the neighborhood. Since spring, I've been riding 70-85 miles a week. Would love to ride more, but I work full time and have 3 kids 6 and under, so.....

I soon got frustrated with the weight of the hybrid and the limited hand positions on the flat bars. So last weekend, I got a road bike. LOVE it. Trek Madone.

Anyway, when i bought my bike I had it professionally fitted that day. The fitter told me to never ever EVER wear undies with cycling shorts (he was very adamant about this). Until then, I always had, never had a problem. Maybe b/c i wear microfiber undies with few seams.

So for 3 rides now I've tried this - going commando under the cycling shorts. So, about 60+ miles. and I HATE IT. It's very uncomfortable for me. The rubbing, the, um, dampness ....

Do you wear undies w/ bike shorts? Why am I not supposed to?