Injinji Ultra Run No-show Onyx Metallic Pearl It features a molded heel

It features a molded heel collar with soft lining for a comfortable step-in feel

Birko-Flor - a synthetic

Wearing the FS4™ Plantar Faciitis socks during runs or sporting activities will aid in preventing plantar fasciitis symptom onset and act as an overall foot health and performance aid

and a contoured heel cup with a wider

Apex provides stability

Injinji Ultra Run No-show Onyx Metallic Pearl It features a molded heelThe Ultra Run No Show includes cushioning across the foot and toes to minimalise the effect that strenuous runs can have on the feet. Each toe is separated from the others, limiting any skin to skin contact and reducing the risk of blisters. Additionally, knit lines on the footbed's underside provide additional arch support. The heel tab on the No Show length prevents chafing and it sits just below the ankle.