I have been given to various levels of rotundness in my life thus far:  I have never crossed the elastic waistband rubicon.  Denial?  Deffiance?  

In other wardrobe news, after decades of experimentation, from tighty whities (hopefully whities) to boxers, and briefs and comando, I have settled on the jock strap style of underwear.  Don't let the straps fool you, they are not uncomfortable, though they look it.  Particularly in the summer heat you will find this style takes sweat away from where you need sweat taken away from, leaving a major heat sink of the male body better able to shed heat and greenhouse gasses most efficiently.