While it's our job to serve up absolutely brilliant and incomparably witty style tips year round, this summer we've decided to do something special and recruit a few of our most stylish friends to give you their take on what to wear and, by default, what not to wear this season. First up is our dear friend and tattoo expert Frankie Eiknarf, whom now spends his days as a graphic designer and founder of creative agency KNOWUSE. In recent years, Frankie has been at the forefront of the branding and graphic design world, having worked with such clients as Nike and motherfucking Lady Gaga. More recently, he launched the website KNOWWEAR, an online aggregator of the best clothing in menswear, which they serve up in an easy to digest daily look format. Above, he offers you his do's and don'ts as you set out to have the greatest summer of your life.