LOCATION / CHARACTERISTICS
WIDE (A)
a) shell to be 3-4 mm wider than lab standard
NARROW (B)
b) shell to be 3-4 mm narrower than lab standard
INDICATIONS
a) excessive pronator to maximize contact area with plantar surface area
b) slender/narrow foot-type low profile footwear
CONTRAINDICATIONS
a) low profile/narrow footwear
b) wide footwear deep heel cup (>14 mm)