Emily Ratajkowski, Irina Shayk, Chrissy Teigen & Lily Aldridge's Best Moments: SI Swimsuit 2015

Yu Tsai/SI

Emily Ratajkowski was photographed by Yu Tsai in Kauai.

Yu Tsai/SI

Irina Shayk was photographed by Yu Tsai in Kauai.

Yu Tsai/SI

Chrissy Teigen was photographed by Yu Tsai in California.

Yu Tsai/SI

Lily Aldridge was photographed by Yu Tsai in Washington.

Yu Tsai/SI

Emily Ratajkowski was photographed by Yu Tsai in Kauai.

Yu Tsai/SI

Irina Shayk was photographed by Yu Tsai in Kauai.

Yu Tsai/SI

Chrissy Teigen was photographed by Yu Tsai in California.

Yu Tsai/SI

Lily Aldridge was photographed by Yu Tsai in Washington.

Yu Tsai/SI

Emily Ratajkowski was photographed by Yu Tsai in Kauai.

Yu Tsai/SI

Irina Shayk was photographed by Yu Tsai in Kauai.

Yu Tsai/SI

Chrissy Teigen was photographed by Yu Tsai in California.

Yu Tsai/SI

Lily Aldridge was photographed by Yu Tsai in Washington.

Yu Tsai/SI

Emily Ratajkowski was photographed by Yu Tsai in Kauai.

Yu Tsai/SI

Irina Shayk was photographed by Yu Tsai in Kauai.

Yu Tsai/SI

Chrissy Teigen was photographed by Yu Tsai in California.

Yu Tsai/SI

Lily Aldridge was photographed by Yu Tsai in Washington.

Yu Tsai/SI

Emily Ratajkowski was photographed by Yu Tsai in Kauai.

Yu Tsai/SI

Irina Shayk was photographed by Yu Tsai in Kauai.

Yu Tsai/SI

Chrissy Teigen was photographed by Yu Tsai in California.

Yu Tsai/SI

Lily Aldridge was photographed by Yu Tsai in Washington.