Standard of Siberian cat
Body
Medium sized to large cat, well-muscled and heavily built. Neck short and substantial, legs also muscular and of medium length; feet big, compact, round and well tufted. Tail as long as to reach the shoulder blade , slightly tapering, furnished bushy.
Head
Head short and broad with low set wide cheek bones, rounded muzzle and chin, forehead slightly curved, gently rounded contours and slightly curved profile. Nose of even width from bridge to nose leather.
Ears
Medium-large, wide at base with slightly rounded tips. Set wide apart and tilted slightly forward.
Eyes
Large, slightly oval shaped with rounded lower line, set slightly oblique and wide apart. Eye colour to be uniform and harmonizing with coat colour. Any shade from yellow/gold to green is accepted. In whites and vans the eye colour may also be blue or odd-eyed. In pointed cats the eye colour is blue on principle, the deeper the blue the better.
Coat
Coat is of medium length; very dense undercoat, soft and fine, covered by a coarser, more substantial top coat. The dense smoothly flowing top coat is waterproof and glossy, of coarse, crisp texture, completely covering the back, flanks and the upper side of the tail. Undersides of body and back side of hind legs have only undercoat. Particularly long hair on neck, chest, breeches and tail.
Colour
Chocolate and cinnamon and the according diluted colours (lilac and fawn) are not accepted in any pattern combinations.
The pointed variety is named Neva Masquerade.
Burmese pattern is also not accepted. Any other colour is accepted, the descriptions of colours are listed in the General
Colour Guide. Any amount of white is allowed.
Defect
Too small and not much heavy
Long face or face too rotund like Persian cats
Eyes too round or of different colour
Ears too big or not positioned obliquely
Leg too long or slim compared to the body
Tail too short
Coat too fine or adherent to the body

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Standard FIFe http://www.fifeweb.org/wp/breeds/std/sib_std.html
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Standard WCF: http://www.wcf-online.de/english/index.htm
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Standard ANFI http://anfitalia.it/standard/siberiano.php