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FS4+ Compression Bracing Socks

These over-the-calf compression bracing socks from OS1st provide target compression and support to your entire foot and lower leg. Compression can help improve blood flow to these areas, enhancing endurance and speeding recovery. These are a great option for those in need of special support for longer missions in the Sierras and beyond. Can be using during activity or as a recovery tool after a workout. 

Sizing Guide

Size Ankle Circumference 
Calf Circumference Shoe Size
S 6.5-8.5 in 9.5-14.5 in 3-5.5(M) / 4-6.5(W)
M 8.5-10.5 in 12-17 in 6-9.5(M) / 7-10.5(W)
L 9.5-12.5 in 14-19 in 10-13(M) / 11+(W)
XL 12-14 in 14.5-20 in 13.5-15(M)