Winters and hard conditions have shaped the race. An impressive hardiness and frugality to all events, it has increased to face the terrible conditions of the major North American winters.

Their hair is curly, round, thin and oily, with various degrees of curling, from a small ripple in tight curls like astraquan. It is through their woolly hair, their thick skin, the generous layer of fat and the deep venous system, that in winter, Curly horses can withstand temperatures of around -40 °.
The mane and tail are curled several degrees from the ripple, the curling and even Rasta style! (Dreadlocks) .. The hair in the ears is curled, often in the summer, the only visible sign of recognition of a curly.Mustaches, eyelashes, and bullets are often curled or curly. In the spring the thick coat moults to give way to a fine hair, stiff or slightly wavy. Some Curlies even lose tails and manes, they are called "extreme" Curlies. Some may even, in the spring, lose their coats in patches, up to the total alopecia, followed by a spontaneous regrowth of hair that's straight to wavy. But most moult "normally" in a few days.
There are stiff bristles with Curls (straight on the stated preference of "non-feature"), they have the same peculiarities HYPOALLER-GENIC as the Curly. Their progeny can be Curls and hypoallergenic.
The interior of its short and wide ears is trimmed yearly to a tuft of curly hair, which allows the Curly to keep warm in winter. The ABCR recommended not to cut these hairs in distinguishing the Curly. His eyes, which all colors are accepted, are almond-shaped, often lined with very curled eyelashes, which give them a soft and nonchalant look. The curly have wider fields of vision that the horse called "classic", caused by a more important gauge of the eyes, characteristic of the Oriental horse. Its nostrils are small and crescent-shaped, may close, sinus larger than normal to warm the inspired air. His frame is compact and strong.
Its members are well structured, a right upright, and his hooves are round, possibly black or streaked, with very dense horns. The strike, moreover, for most of the time, is unnecessary. But a good trim is required every five to six weeks. The previous must have the "forearm" long, the short pastern (more robustness and flexibility).
The post panards slightly. .. "a feature of the race is the force by the durability and endurance, this is particularly evident in the almost perfect skeleton of their feet and their legs that do rarely a problem" ... ICHO It has small soft chestnuts, which tend to disappear after some specimens. The pins (located at the ball) are sometimes absent. In fact, signs of the primitive race. His back is short. Some times there are curlys with only 5 lumbar (like Arabic). Most of the curls have a rump rounded, fleshy and falling.
The North American Curly Horse is unique, responding to varied descriptions. The wide diversity of existing types is part of a Curly's identity. Close to nature and unique to man for all these reasons, the North American Curly today is a horse known for its hardiness and its natural abilities, its diversity of sizes types and colors of his good heart" .
... "The Bashkir Curlys existing today are always more shaped by nature than by man, which has retained its heritage in many genetic characteristics and primitive survival instinct. In many ways it is not a stable race of horses.

The definition of a " stabilized race " around the statement that "animals that, through careful selection and breeding over several generations, we can look forward to offspring with traits that are consistent and expected.