The Red Fox is most commonly a rusty red, with white underbelly, black ear tips and legs, and a bushy tail with a distinctive white tip. The "red" tone can vary from crimson to golden, and in fact can be brindled or agouti, with bands of red, brown, black and white on each individual hair when seen close up. In North America, the red fox's pelt has long, soft hair, whereas the fur of European red foxes is flatter and less silky.[5]
In the wild, two other color phases are also seen. The first is silver or black, comprising 10% of the wild population and most of the farmed. Approximately 30% of wild individuals have additional black patterning, which usually manifests as a stripe across the shoulders and down the center of the back. This pattern forms a "cross" over the shoulders, hence the term "cross fox". "Domesticated" or farmed stock may be almost any color, including spotted, or "marbled", varieties.
The fox's eyes are gold to yellow and have distinctive vertically slit pupils, similar to those of a feline. Their eyesight is also as sharp as that of a feline, and combined with their extreme agility for a canid, the Red Fox has been referred to as "the cat-like canid". Its long bushy tail with distinctive white tip provides balance for large jumps and complex movement. Its strong legs allow it to reach speeds of over 70 km/h (45 miles per hour), a great benefit to catching prey or evading predators.
The Red Fox may reach an adult weight of 2.7–6.8 kg (6–15 lb), but this varies from region to region.