HUF is like a must stop destination. There are now three HUF stores in San Francisco, one on Hayes St, and two on Sutter Street-- the newer one on Sutter they're calling "Sutter 816," and is full of hot clothing from folks like Stussy and Alife. They have books and a bunch of other limited edition goodies. The store two doors down, "Sutter 808," as well as the one on Hayes St are very similar-- classic, wild, limited edition, and fun sneakers from wall to wall. They're a definitive source on sneakers, but if you can't make it out to San Francisco, they have an online shop so you can do your shopping from the comfort of your home.