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OS1st FS4+ Compression Socks, (Pair)

The OS1st FS4+ Over the Calf Compression Bracing Socks is designed to provide relief for ankle swelling, Plantar Fasciitis, Achilles tendonitis, heel and arch pain and shin splints while also improving recovery. Free Shipping, sold in pairs.

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The FS4+ Over the Calf Compression Bracing Socks are specifically designed to keep you on your feet and legs healthy and pain free. Our FS4+ socks provide relief for ankle swelling, Plantar Fasciitis, Achilles Tendonitis, heel and arch pain, shin splints and muscle fatigue while also improving recovery time. Our proprietary design infused with award winning, patented FS6 Compression Zone Technology woven into our socks provides medical grade orthopedic support for the foot and overall leg structure. Medically correct graduated compression improves circulation and reduces swelling in the highest quality, soft, moisture-wicking fabric containing an anti-odor treatment and padding in the right places, the FS4+ creates a technical Orthotic sock that strengthens the foot and leg structure.

The Best Recovery Socks for the Seasoned Athlete!

Our FS4+ Compression Bracing Socks provide medical grade orthopedic support combined with  Compression Zone Technology® to relieve pain and prevent injury.  Get relief from past injuries, Plantar Fasciitis, swollen ankles and feet, shin splints, or poor circulation.


5 Zones of Medical Grade Graduated Compression

The FS4+ Compression Bracing Socks are designed anatomically correct with a Y-gore heel pocket for perfect placement on your feet and legs.  The five zones of compression boost venous flow, protect the Plantar Fascia, support the Achilles and improve circulation to create a product that is comfortable and easy to wear daily.

Faster Recovery, Improved Circulation, and Injury Prevention!

Our compression bracing socks reduce and prevent pain and injury from active lifestyles. Wear the FS4+ socks for top-notch performance!

Available in a black, grey, pink and white, the FS4+ Compression Bracing Socks are a perfect fit!

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Weight 1 oz
Dimensions 3.5 x 7 x 1 in

Extra Large, Large, Medium, Small


Black, Blue, Pink Fusion, White, Grey