\documentclass{article}
\usepackage[T1]{fontenc}
\usepackage[sfdefault,medium]{ClearSans}
\usepackage{lipsum}
\begin{document}

\begin{center}\huge\bf Clear Sans
\end{center}


\section*{Regular}
\lipsum[1]

\section*{Italic}
\textit{\lipsum[2]}

\section*{Bold}

\textbf{\lipsum[3]}

\section*{Bold Italic}

\textbf{\textit{\lipsum[4]}}

\section*{Light}

\textsfl{\lipsum[5]}

\section*{Thin}

\textsft{\lipsum[6]}

\end{document}