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The first-ever Plantar Fasciitis sock featuring award winning, patented FS6® technology. A technical performance sock that strengthens the foot structure and prevents Plantar Fasciitis symptom onset as well as overuse injuries.
With precise targeted compression levels and cushioning, the FS4 Plantar Fasciitis sock features Compression Zone Technology® that is designed for proper foot support.
Targeted Conditions
Performance Features
The OS1st® FS4 Plantar Fasciitis Socks provide medical grade orthopedic support. Patent pending Compression Zone Technology® relieves and prevents pain. Get relief from past injuries, plantar fasciitis, chronic heel pain, swollen arthritic ankles and feet, or poor circulation.
The OS1st® FS4 Plantar Fasciitis Sock has a comfortable, shaped fit. The high performance design delivers four different zones of compression. This is a product that is comfortable and easy to wear daily. Don’t let bulky and uncomfortable splints keep you from your peak performance.

these socks are great! Feel really supportive for my feet - I have plantar fasciitis - and they really help my feet feel supported and comfortable.
Surprisingly supportive - and certainly helps my plantar fasciitis- I bought two more pairs!
Wow these are the best for my plantar fasciitis. My foot feels like it is being held and comforted in these socks all day long. I have a pair for everyday now. Highly recommend.
These socks are helping with my pain in the day
I got the right size. They are quite firm - probably need to be I guess. Do help to support my feet. This is my first episode of plantar fasciitis and I'm not enjoying it!
The first-ever Plantar Fasciitis sock featuring award winning, patented FS6® technology. A technical performance sock that strengthens the foot structure and prevents Plantar Fasciitis symptom onset as well as overuse injuries.
With precise targeted compression levels and cushioning, the FS4 Plantar Fasciitis sock features Compression Zone Technology® that is designed for proper foot support.
Targeted Conditions
Performance Features
The OS1st® FS4 Plantar Fasciitis Socks provide medical grade orthopedic support. Patent pending Compression Zone Technology® relieves and prevents pain. Get relief from past injuries, plantar fasciitis, chronic heel pain, swollen arthritic ankles and feet, or poor circulation.
The OS1st® FS4 Plantar Fasciitis Sock has a comfortable, shaped fit. The high performance design delivers four different zones of compression. This is a product that is comfortable and easy to wear daily. Don’t let bulky and uncomfortable splints keep you from your peak performance.
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