I just bought a pair of the ExOfficio Give-n-Go boxers... they are the best underwear ever! So lightweight and comfortable, it's like you're not wearing any. I prefer loose boxers rather than briefs or boxer briefs and these are simply awesome.
They are pricey but totally worth it. Magellans has a buy 2 get 1 free offer going on... I'll have to stock up.
Sorry for the raving, but it's like an epiphany to me. xD

I also received a Patagonia One Bag as a gift. I'm gonna try and see if I can go less than maximum size comfortably.

Thanks for the heads up on the Ex Officio sale. I was planning on buying before my trip to Florida when I try one bagging it for the first time.

I, too, love the fit and feel of Exofficio's boxers. They are great to wear all day.