These are compression leggings for the stomach area. I'm pretty sure I bought them at Aeon (*^^*) They aren't thick or fleece-lined, so they might be cold to wear on their own in the dead of winter? It probably depends on the person though ^^; I've worn them about 5 times. They've been washed and stored at home. For those concerned about a protruding belly, or those who want compression on their lower abdomen. Color: Gray系 (Gray-ish) No stains, tears, or odors.