Pearl Izumi leg warmers for bicycling and other sports. Full length, black, with black fleece lining and ankle-to-mid-calf zipper to make it easy to get on/off. Unisex size small (see their website for size guide and my pics for measurements).

Lets you transform your shorts into much warmer full-length tights. Soft thermal fleece integral to the inside. Stretches. Water-shedding performance. Logo on the back of the calf adds reflectivity in low-light conditions. Silcone grip helps keep them in place at top and bottom. Fabric is a blend of 56% nylon, 30% polyester and 14% lycra. 
Breathable and water-resistant treatment will bead light precipitation. Left and right leg for an anatomical fit.

Used probably twice. Great shape and work great.