OS1st Compression Bracing Socks FS4+

$ 79.95

Size | Ankle Circ. | Calf Circ. | Average Shoe Size

S | 17-22 cm | 24-37 cm | EU 33-36

M | 21-27 cm | 30-43 cm | EU: 37-41

L | 25-31 cm | 35-48 cm | EU: 42-46

XL | 30-35 cm | 37-51 cm | EU: 47-50


The item is sold in a pair, comes only in black.


Select Local Pick Up during checkout to self-collect your purchase at our training venues.

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FS4™+ Compression Bracing Socks is a new expansion of OS1st Socks with Purpose® program. Designed as an all-in-one performance running and recovery sock, the FS4™+ socks provide relief for ankle swelling, varicose veins, Plantar Fasciitis, Achilles tendonitis, DVT, shin splints, leg cramps, fatigue while also improving muscle recovery.

The proprietary design infused with award winning, patented FS6® technology, offers true orthotic benefits that strengthen your foot and leg structure and act as an overall health and performance aid. Featuring the Compression Zone Technology® with precise targeted and medical grade graduated compression levels, the FS4™+ is designed for running, walking, standing, sitting and even sleeping in them.

The socks provide proper foot and leg support and injury prevention. Developed through years of exhaustive research, every sock is engineered with the highest quality machines to provide the best technical performance features for increased comfort.

Using the highest quality, soft moisture-wicking fabric containing an anti-odour treatment and padding in the right places, the FS4™+ creates an ultra comfortable wear for daily use during any activity or even non-activity on long flights. FS4™+ socks are a perfect fit for your active lifestyle!


S, M, L, XL