http://www.myfonts.com/fonts/s-core/core-sans-cr%20/

Core Sans CR is inspired by classic geometric sans (Futura, Avenir, Avant Garde etc.). It is based on geometric shapes, like near-perfect circle and square. It has a much higher x-height (height of lowercase letters), an effect which promotes readability especially at small print sizes. The Core Sans C Family consists of 9 weights (Thin, Extra Light, Light, Regular, Medium, Bold, Extra Bold, Heavy, Black) and Italics for each format. Core Sans C supports complete Basic Latin, Cyrillic, Central European, Turkish, Baltic character sets. Each font includes proportional figures, tabular figures, oldstyle figures, numerators, denominators, superscript, scientific inferiors, subscript, fractions and case features. Core Sans C is an ideal font family for use in magazines, web pages, screens, displays, and so on.