We’ll take a six-pack, please! This summer gave us an extra dose of hotness in the abs department, which is why we’re gathering all of the hottest in one place. On our list: True Blood’s Ryan Kwanten, whose washboard obliques are all naturally carved, sans weight room. “I love to sweat and keep fit…but I don’t work out in a gym,” he told InStyle. “It’s so much better to spend three hours hiking than to go nowhere on a treadmill.” Click through the comprehensive gallery of all the rippling, glistening abdominal muscles you can handle—we just hope you have air-conditioning.