Dr. Martens and great tattoos seem to go hand-in-hand these days. Sergio Cranshaw, a sales associate at Bloomingdale's, has the SF trend down pat with his proud "415" tattoo and brand new boots.

The very handsome, Sergio, in his just-purchased grey Dr. Martens and mixed plaid. I like Sergio's proportion control -- with broader shoulders, but skinny legs, if you're going to rock tight denim, it's not a bad idea to balance it out with a chunkier, heavier-soled shoe. 

We caught Sergio exiting the Macy's Men's Store, already flaunting his new purchase. He dashed in to find a pair of boots after his shoe tore and found this classic pair. I've never seen Docs in this matte gray, but I really like them -- especially contrasted with the iconic yellow stitching.

Lily Ko (lily.7x7 @ gmail.com) studied fashion design and merchandising at Central Saint Martins and the Academy of Art University. In addition to writing for 7x7, Lily is an editor at SF Station, works as a freelance stylist and covers food, fashion and fun on her blog, Curated SF.