We spent a summer morning the best way we know how: catching waves and sharing laughs with some of our favorite people—who also happen to be the some of the most stylish surfers in the water. We had a blast putting a few Left On Friday swimsuits to the test to see if they hold up to their "no nip slip" guarantee, and we have to say, they really do keep you tucked in both in and out of the water. Stylish, durable and made for athletic endeavors, we're stoked to give Left On Friday suits the Whalebone stamp of approval.