ErgoWear Size Chart ErgoWear offers the best Men's pouch underwear, swimwear, and gymwear! ErgoWear is the world's first and leading brand to specialize in men's ergonomic underwear, swimwear and athletic apparel. Since 2002, ErgoWear has been offering the most comfortable pouch underwear, swimwear and athletic apparel including male thongs, bikinis, boxer briefs, mini boxers, jockstraps, square cuts, compression shorts, long johns and swim suits for men. Whether you're new to the world of sophisticated undergarments for men, or in need of functional underwear, or just a hardcore underwear fan, you'll find what you're looking for with ErgoWear!