I absolutely love the SAXX Vibe 5 boxer briefs and I wear them at home on the weekends when Im bumming around in basketball shorts. They hug your junk perfectly without feeling like you're wearing underwear.  The downside is that the Vibe doesnt have a fly so its a PITA at work during the week to have to drop trou and retuck your shirt just to take a leak at the urinal.  So I went to the Saxx website looking for a model with a fly and ended up with the Ultra.  Unfortunately they run big and the ballpark pouch that makes Saxx so great is HUGE.  So disappointing... Im contemplating trying a size down, but the website says its roomier and it looks like its just made to be saggier.