Shop sneakers available in dazzling colors and cute designs from brands like Adidas, Skechers, Under Armour, etc., for fashion-loving athletic girls. 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. Being a color of wisdom, purple is one of the most liked hues.