Too shear in the rear to be leggings, but are awesom warm tights or an excellent warm base layer.  Less bulky than long underwear and 4-5 times warmer than wool.  
 
Materials: 41% Alpaca, 34% Acrylic, 23% Nylon, 2% Spandex
 
Unisex styling for women and men.
The leggings stretch both for length and width. Being a knit item, if stretched too much they will begin to be "see through".
 
Gentle machine wash/air dry