Abstract We give a precise definition of BPS vortex loops in 3D non-abelian gauge theories with N $$ \mathcal{N} $$ = 2 SUSY by the path integral over fields with a prescribed singular behavior. We compute the expectation value of a BPS vortex loop on an ellipsoid. Using the result we revisit the known equivalence between Wilson and vortex loops in pure Chern-Simons theory. https://icastorers.shop/product-category/toys/