Olympic unisuits protect against polluted waters[ Tue, 28 Jun 2016 15:29:42 EDT ]The U.S. Olympic rowing team will appear in seamless unisuits when they hit the bay waters of Rio de Janeiro this summer. Though many viewers will notice only the second-skin fit, these innovative suits will also be providing much-needed protection against the foul waters of Guanabara Bay. The unisuits are knitted with antimicrobial material, their designer said.