Boxer briefs or tight boxers are a type of men’s undergarment which is long in the leg, like boxer shorts but tighter-fitting. Army boxer briefs are extremely popular with body builders, summer wear, runners, regular fashion wear, military personnel, army personnel and many more. Boxer brief designs can have a keyhole fly, button snap front, or no fly at all. The boxer brief design provides form fitting coverage for the midsection from the waist to the thighs and is worn on the waist. A trunk is a type of boxer brief that is slightly shorter in the leg and can also be used as swimwear. Boxer briefs are a popular choice for men who are participating in athletic activities or who feel they need more support than loose-fitting underwear can provide.