Fox River Therm-A-Wick Liners | Medium

When every layer matters in your outdoor adventures, lightweight liner socks become essential gear for keeping feet warm and dry without adding bulk. These ultra-lightweight crew liners use advanced Thermolite technology to trap heat while actively wicking moisture away, making them ideal for layering under heavier socks or wearing in snug-fitting boots where space is at a premium.

• Thermolite hollow core fibers heat quickly and retain warmth efficiently
• Wick Dry moisture-wicking technology moves sweat away from skin to outer sock layer
• Smooth flat-knit construction minimizes weight and bulk inside footwear
• Flat comfort toe seam eliminates pressure points and reduces friction
• Friction barrier design helps prevent blisters during extended wear
• 50% Thermolite EcoMade polyester, 49% nylon, 1% spandex blend
• Machine washable and durable for repeated seasonal use

This product is available in Large sizing to ensure proper fit for your layering system.

These liner socks are ideal for backpackers, mountaineers, hunters, and anyone spending extended time outdoors in cold conditions who needs reliable moisture management without sacrificing boot fit.

Questions about the Fox River Therm-A-Wick Liners?

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