The GOS is a large breed, white in color with a minimum of one distinct black spot. It has lop ears which will almost cover the face of a mature pig.
Head: Medium length.
Nose: Medium length and slightly dished.
Ears: Well set apart, dropping forward to se, not at the sides, nor thick nor coarse, not longer than nose.
Neck: Medium length with jowl little pronounced.
Shoulders: Fine but not raised.
Back: Long and level; should not drop behind shoulders.
Ribs: Deep, well sprung.
Loin: Very broad.
Sides: Deep, presenting straight bottom line. Belly and flank, full thick. Well-filled line from ribs to hams.
Quarters: Long and wide with thick tail set well up.
Hams: Large and well filled to hocks.
Legs: Straight and strong.
Skin: Must not show coarseness or wrinkles.
Coat: Silky and not curly. No mane bristles. Not less than one clean decisive spot of black hair on black skin. Black should not predominate.
Underline: Straight, with a minimum of fourteen sound, evenly spaced and well-placed teats starting well forward.
Neck: Heavy jowl objectionable.
Ears: Short, thick and elevated.
Coat: A rose disqualifies. A line of mane bristles is objectionable. Sandy color may disqualify.
Skin: Serious wrinkles. Blue undertone not associated with a spot.