Spectacled lesser galagos are medium-sized for galagos, with dark-brown hair over most of their body. Their ears are tall and black. The most characteristic feature of spectacled lesser galagos, like other nocturnal primates, is their extremely large amber eyes that help them to absorb as much light as possible in dark nighttime forests. As their name suggests, spectacled lesser galagos have “spectacles” of dark hair framing their eyes, which continue down in thin bands, connecting at the nose and giving the appearance of glasses. They have a white nose stripe that extends to the forehead. Their stomach, throat, and insides of their legs are pale gray, while their back and upper legs are dark gray-brown. Their tail is long and is often held coiled when sitting. Their hind legs are noticeably longer than their forelegs, and their hind feet, like most other strepsirhines, include toilet claws. Their nails have a ridge that runs vertically down the length of the nail, and end in a sharp point. This is similar to species of a related genus, Euoticus, composed of the needle-clawed galagos, although this nail ridge isn’t quite as pronounced on spectacled lesser galagos (though they are still sometimes referred to as lesser needle-clawed galagos). They display no sexual dimorphism and infants are born with their adult coloration.