The FM Sport is a very slim and durable custom orthotic that promotes motion in the first ray.
 
Shell Material: PRX Graphite™ (Semi-Rigid)
Orthotic Width: Regular
Heel Cup Depth: 12mm
Top Cover Length: Full
Top Cover Material: 1/8″ Perforated Ucolite
Padding Material: None
Bottom Cover Material: 1/16″ EVA (FF only)
Forefoot Post: Intrinsic
Rearfoot Post: Modified Intrinsic
Accommodation: 1st Ray Cut-Out