Examples of websites using
Stratos
(designed by Emmanuel Labard, Yoann Minet, Ilya Ruderman, Irene Vlachou and Yury Ostromentsky and released by Production Type in 2016)
with
Roboto
(Roboto is a sans-serif font designed by Christian Robertson and published through Google. The font family consists of 12 styles, including regular, italic, bold, and bold italic variations)