Founded in 1995, Concepts has been helping Beantown-area chaps connect with killer sneakers and upscale streetwear since before it was cool. From their brick-and-mortar operation in Harvard Square, they offer all manner of limited-release, hard-to-find sneakers, as well as stylish clothing and accessories from the likes of Visim, Come de Garcons, APC, Lacoste, and more. They also play host to frequent in-store events, and frequently pair with companies to produce co-branded product collaborations that are often only available at the store. In other words, even if you're just browsing, it's worth a stop.