Trail riding underwear??

Hope this is an okay place to post this but I have yet to find underwear that is comfortable for a 4+ hour trail ride. Need something that breaths and stays put. I'm 130 lbs average size female. Any suggestions??

Well, I wear these and have never had a problem with them riding up and with them being pretty lightweight cotton, they breathe well.
Amazon.com: Fruit Of The Loom Womens 6 Pack...

Commando....Jk

womens outdoor underwear - Bing Images

Look into cycling clothing. They make some great stuff that is designed for butt comfort! Works great for riding too.

Commando (not kidding). Or boys cotton boxers. Nothing knit. Ever.

Are you wearing jeans???? We trail ride in riding tights or breeches. With chinks as needed. TOTAL comfort.

Thanks for the quick suggestions. Now for some internet browsing.

Under armour.

I can do 100 miles in them and have no issues.

Sorry to get personal, but which ones? Got a link?