  Soft materials are known to deform due to a variety of mechanisms, including
capillarity, buoyancy, and swelling. In this paper, we present experiments on
polyvinylsiloxane gel threads partially-immersed in three liquids with
different solubility, wettability, and swellability. Our results demonstrate
that deformations due to capillarity, buoyancy, and swelling can be of similar
magnitude as such threads come to static equilibrium. To account for all three
effects being present in a single system, we derive a model capable of
explaining the observed data and use it to determine the force law at the
three-phase contact line. The results show that the measured forces are
consistent with the expected Young-Dupr\'e equation, and do not require the
inclusion of a tangential contact line force.
