The Fox River Unisex Wick Dry Alturas Liner Sock is knit at Fox River Mills’ Osage, Iowa facility. American knitting machines, Wick Dry moisture management technology where noted, URFit Arch Compression on tactical variants, and the over-120-year heritage that’s made Fox River the standard for US military and serious outdoor sock buyers.
Sized for tactical/military boots, hiking, work, and steel-toe applications. Polypropylene Wick Dry, memory-knit construction, and reinforced heel/toe panels. Backcountry, Tactical, Maximum Boot Sock, and Steel-Toe Work variants cover every use case. American performance sock standard.
Fox River Mills has been knitting performance socks in Osage, Iowa since 1900. Family-owned for over 120 years, Fox River socks — tactical military boot socks, Wick Dry liners, hiking socks, steel-toe work socks — are knit on American knitting machines at the Iowa facility. Used by US military, Boy Scouts, hunters, and serious outdoorsmen.









