Boxer briefs (or tight boxers) are a hybrid type of men's undergarment which are long in the leg, like boxer shorts but tighter-fitting, like briefs. Depending on the manufacturer, boxer briefs may also be spelled as one word: boxerbriefs. They are sometimes called "trunks" in the United Kingdom and Australia. Boxer briefs were pioneered by designer John Varvatos during his 1990-1995 stint at Calvin Klein as head of menswear design. Made famous by a series of 1992 print ads featuring Mark "Marky Mark" Wahlberg, they have been called "one of the greatest apparel revolutions of the century." Of their creation Varvatos said in 2010, “We just cut off a pair of long johns and thought, this could be cool ..." While some may find regular briefs too restrictive, others may find boxer shorts too loose. A pouch or "over sized" pouch may be built in to add space and position the testicles forward and give the penis more room. Boxer briefs are commonly used in athletics instead of, or in additio.. …