Unisex F4 Tech No Show 3-pair pack (White) setup while a unique cushioning system

while a unique cushioning system provides comfort in specific pressure areas

effective alternative to custom orthotics

improving efficiency and reducing fatigue

These performance orthotics are also suitable for relieving pain associated with many common conditions such as plantar fasciitis

Wrapped in durable EVA foam

Unisex F4 Tech No Show 3-pair pack (White) setup while a unique cushioning systemDesigned to meet the demands of race day athletes, the F4 utilizes to provide compressed venting and moisture wicking in the most extreme conditions. Made with Sorbtek, this sock channels moisture away from the foot, keeping it cool and dry. Anatomical left right foot construction allows for precise fit, while a unique cushioning system provides comfort in specific pressure areas. Achilles protection reduces blistering on the back of the foot, and a