I'm not 100% but it looks like Adidas (and maybe Mizuno) out did the various Vaporfly's in Lake Biwa. The first guy Macharia Ndirangu was wearing Mizuno but up close it looks like Adidas (though not sure but definitely not the Vaporflys), the guy in second wore Adidas gear but I'm not sure about the shoes, Robertson was 3rd in a pair of Vaporflys, as we're a few top Japanese.