Celebrate National Nude Day with the ladies of SI Swimsuit!Author:SI StaffPublish date:Jul 14, 2016Ben Watts/SIKelly Rohrbach, SI Swimsuit 2016James Macari/SINina Agdal, SI Swimsuit 2014Yu Tsai/SIBo Krsmanovic, SI Swimsuit 2016@Ruven AfanadorChrissy Teigen, SI Swimsuit 2016Yu Tsai/SIEmily Ratajkowski, SI Swimsuit 2015@Ruven AfanadorNina Agdal, SI Swimsuit 2016Yu Tsai/SIGenevieve Morton, SI Swimsuit 2014James Macari/SIAshley Graham, SI Swimsuit 2016