\documentclass{article}
\usepackage[T1]{fontenc}
\usepackage[]{Oswald}
\usepackage{lipsum}
\begin{document}

\subsection*{Regular}
\lipsum[1]


\subsection*{Bold}

\textbf{\lipsum[2]}

\subsection*{Extra Light} 

{\fontseries{el}\selectfont\lipsum[3]}


\subsection*{Light}
{\fontseries{l}\selectfont\lipsum[4]}

\subsection*{Medium}
{\fontseries{m}\selectfont\lipsum[5]}

\subsection*{Semi Bold}

{\fontseries{sb}\selectfont\lipsum[6]}




\subsection*{Default Numbers}

1234567890


\end{document}