Best underwear for running (men's)?

James Auman

Barefooters
May 30, 2019
15
6
3
54
Raleigh, NC
If you do have to wear underwear under your running shorts, what do men on this forum prefer to wear under your running shorts? Or is that just not working for anyone, and running shorts with a liner is the only way to go?
 
I wear light shorts without liner, so underwear is mandatory... Craft Greatness 3" or 6" works for me. Otherwise I wear always Björn Borg boxers, but they are too "heavy" for running imho.
 
For long hot runs, I haven't found anything better than compression shorts. I wear them under a loose pair of shorts. For anything less than 90 minutes or so, it doesn't much matter. I'll even wear cotton tighty whiteys for hour-long runs in the heat.
 
I haven't really found much difference in brands/styles. I've had lots of Adidas (Climalite, Flex360, etc), Champion compression, Under Armor, cheap Wallmart ones (Athletic Works or something like that $2-3 ea) both short and longer inseam. Iits a long sweaty run I slightly prefer the longer inseam ones to help cut down a little chaffing, but its pretty minor. Champion has worn out fast for me, those I won't buy again.
 
Saxx lined running shorts most of the time. Saxx boxers if wearing unlined shorts. I'm big and chafe where one shouldn't. Since I started wearing Saxx, I have no need for run guard.