Memoi Girls Heather Tights with model MK-054. These Memoi microfiber tights are about 40 denier. I stock them in gray which is really a heather gray. They have a two tone look to them. They run small, but a little bigger than the regular Memoi Winter Opaque Tights. These tights are made in both children's and women's sizes. If a woman doesn't want control top these can be a good option.