An article of apparel, including a garment such as underwear, boxers, or briefs is provided that has an integral support system. The garment is configured to provide improved genital support while the wearer exercises, plays sports, or engages in a physical activity. The garment includes a portion configured as an article of clothing such as underwear, for example, made of cotton and spandex/elastane material, and includes a support pouch, a wide waistband, support straps slidingly disposed through retaining means, and other supportive features. Use of the garment can eliminate the need for the user to wear multiple support layers or uncomfortable compression underwear in order to gain adequate support while exercising, playing sports, or engaging in other physical activities.