Shop athletic shoes and sneakers for boys in cool and bold shades like blue, black, yellow, white, gray, pink, etc. Jim and Helen Thayer founded Northside, and its parent organization is Triple T Trading. Within a few years of its inception, Northside has established a firm grip in the footwear category in countries like the US, Canada, and China. Olive is a dark yellowish-green color favored by most fashionistas.