In this project we used a Proxima Nova font. You can buy it using e.g. Typekit service or MyFonts
http://typekit.com/fonts/proxima-novahttps://www.myfonts.com/fonts/marksimonson/proxima-nova/If you want to use a free font we recommend to use Montserrat.https://www.google.com/fonts/specimen/Montserrat