I was guessing a French team for three guys in their water polo suits but not entirely satisfied even with a Cross of Lorraine.
Now I can make a correction - not France but the SLOVAKIA team has those suits:
http://25.media.tumblr.com/tumblr_m5...i5no1_1280.jpg
To put the record straight THIS is France:
http://25.media.tumblr.com/tumblr_m5...i5no1_1280.jpg