At first glance, testers questioned the horizontal fly on the breathable CW-X Litefit Boxer Brief ($35, cw-x.com)--or the need for a fly at all. But in the end, they forgot it was even there. (Check out the complete Runner's World Gear Guide.)
Pro: The fit is tight yet comfortable, thanks to a design that offers light support.
Con: Some testers felt that the wide waistband was a little too tight.
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