Stumble is a rather lean yet muscular male donkey with a brown coat and different shaded gray flecks. His mane, which is a spiky neck mane, is basically the same color scheme but darker. His tail is the same way. His hands and feet are black hooves. Stumble has big straight ears.

I haven't really though of much detail except for the fact that he's a country boy and he sometimes chews on a long piece of straw in his mouth. Stumble is a very playful and friendly boy. :3