Mens underwear: undergarment
being worn directly on the skin and designed for men.
Strap: straps passing on the shoulders.
Waistband: elastic fabric at the level of the waist.
Crotch: part of the briefs located between the legs.
Fly: vertical slit located at the front.
Briefs: breeches provided with an opening on the front.
Armhole: opening by which passes the arm.