Chell, documented as Test Subject #8177, is a Caucasian young woman with grey eyes, black hair tied in a ponytail, 
and wearing a standard orange aperture science jumpsuit. She wears the jumpsuit with the upper part folded down and tied around her waist, revealing a tight white tank top bearing the Aperture logo and tight-fitting pale blue shorts or pants. Strapped to her legs are long fall boots, which causes her to stand on her tip-toes, and she is never seen with them off.