Calvin Klein's Obsession -- the Gym

Posted Jan 7th 2008 2:11PM by TMZ Staff

Spotted with a Donatella Versace golden orange glow, designer Calvin Klein trolled around Miami's South Beach on Saturday and showed off his buff, worked-out arms and perky man-nips. CK Guns! Paging Barry Bonds!

The 65-year-old fashion legend's bod looks great -- despite the Fire Island, collegiate, Aberzombie and Fitch outfit!