  In this paper we study class $\mathcal{S}^+$ of univalent functions $f$ such
that $\frac{z}{f(z)}$ has real and positive coefficients. For such functions we
give estimates of the Fekete-Szeg\H{o} functional and sharp estimates of their
initial coefficients and logarithmic coefficients. Also, we present necessary
and sufficient conditions for $f\in \mathcal{S}^+$ to be starlike of order
$1/2$.
