Solstice is a dark-red and orange protogen, an anthropomorphic animal (of indeterminable species) with cybernetic enhancements. The most notable of these enhancements is the rectangular visor covering their face/muzzle. They also have a mechanical skeleton, and prominent enhancements on their upper arms/shoulders, chest, waist area, and thighs. All are black metal, with sleek, sharp designs. The rest of their arms and legs (except for some areas) are mechanical too.