It is worth noting that lots of leg warms are no elastic at the top of these to hold them to your legs. If you aren't wearing knee-high socks or leggings with these they will slip down your calf every few steps, you may not be able to concentrate on your housework or yoga at all.
Kayhoma leg warmers are completely different from these. They provide great elasticity and perfectly wrap the entire calf. Soft and wool-like texture to keep the legs warm, stay up all day.