An elastic yarn is provided comprising at least one elastic filament and at least one further filament, which form a core of the yarn. As different regions of a garment, e.g. socks, need to have different properties in view of recovery, comfort and robustness, and as it is important that the respective articles are easy to produce in the elastic yarn, the elastic filament has a draft between 0.2 and 15.0, and the further filament has a draft of between 0.2 and 5.0.