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

\subsubsection*{Roman}
\lipsum[1]

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

\subsubsection*{Bold}
\textbf{\lipsum[3]}

\subsubsection*{Bold Italic}

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

\subsubsection*{SemiBold}
{\crimsonsemibold \lipsum[3]}

\subsubsection*{SemiBold Italic}

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

\subsubsection*{Small Caps}

\textsc{\lipsum[5]}


\subsubsection*{Bold Small Caps}

\textbf{\textsc{\lipsum[6]}}

\enlargethispage*{4ex}

\subsubsection*{Default Numbers}

1234567890

\subsubsection*{Oldstyle Numbers}

{\crimsonoldstyle 1234567890}

\end{document}