This is a modification of Montserrat (https://www.google.com/fonts/specimen/Montserrat). Some characters (A,W,l,w,y) have been swapped with their alternate versions, most glyphs have been scaled down to 92%, and the amount of space after the letter 'a' has been reduced.
This Font Software is licensed under the SIL Open Font License, Version 1.1. This license is available with a FAQ at: http://scripts.sil.org/OFL
Copyright 2011 The Montserrat Project Authors (https://github.com/JulietaUla/Montserrat), modified