Unzipped: Rubin Singer

The fashion designer gives us a peek inside his gym bag.

Rubin Singer has been on a roll these past few years. One major highlight was in 2013 when the New York City-based fashion designer created Beyoncé's Super Bowl outfit for her first headlining half time performance (the costume is now on display at the Rock and Roll Hall of Fame). And Singer's designs have pretty much been staples on the red carpet ever since. Heidi Klum and Lucy Liu are fans of his eveningwear; Tracee Ellis Ross wore on of his dresses at the recent NAACP Image Awards. 

As part of New York Fashion Week, Singer is debuting his Fall 2016 collection this week. And even though it's a busy few days for designers, Singer still makes time to sneak in a workout or two. Here's what he brings to the gym: