Orthotics' parts

Dynamic rearfoot

The notch and arms (either medial or lateral) allow corrective positioning of the rearfoot without the necessity of adding other extrinsic materials. They guide the subtalar joint at heel strike towards pronation or supination as the case may dictate, allowing the midtarsal joint to fully lock through midstance allowing for re-supination and proper propulsion. The notch also frees the orthotic to generate greater torsion, thus greater flexion-extension, to maximize the transfer of forces in the manner desired leading to optimal muscle efficiency throughout the gait cycle. The proper channelling of these forces, intrinsic to the design of the orthotic, are a key factor in requiring little or no extrinsic material to guide or control foot positioning.

Flexible arch control

Ensures that the midtarsal joint axis’ stay locked in their proper position for maximum muscular efficiency of the foot for re-supination before heading into the propulsion phase.

A specially adapted plastic

Cryos orthotics are made of a hypoallergenic polymer that is modified to enhance its strength, flexibility and flexion-extension memory. These properties further increase the intrinsic torsion that can be generated through the transfer of forces during gait. Also, this material makes for a particularly resilient orthotic.

Sawtooth forefoot

Provide corrective positioning of the metatarsophalangeal joints and the remaining forefoot. Together with the arms, they also allow for stabilization and positional self-adjustment of the orthotic in the event of positional shifts while in motion.



Cryos orthotics stand out from others on the market because they are small and fit inside the majority of shoes. The plastic is durable and ultra hygienic. These are undeniable advantages for my patients.

-François Giroux, DPM, podiatrist