The FM Integrated Orthotic is a rigid rearfoot control orthotic with an integrated post made from the same material as the shell.
 
Shell Material: 3/16″ Polypropylene
Orthotic Width: Regular
Heel Cup Depth: 12mm
Top Cover Length: Shell Only
Top Cover Material: Marine Grade Vinyl
Padding Material: None
Bottom Cover Material: None
Forefoot Post: Intrinsic
Rearfoot Post: Extrinsic Polypropylene