We’ve extended and tripled the welt at the top so the sock stays put all day long—no sliding, sagging, or constant readjusting, even when worn under heavy-duty boots or layered long underwear. The fit is snug but not constricting, designed to stay up and stay comfortable through constant movement.
High-wear zones—heel, sole, and toe—are wrapped in a heathered royal blue nylon exoskeleton for extra durability and protection where it’s needed most. Inside, a built-in elastic arch band gently hugs the midfoot, improving fit, reducing fatigue, and helping the sock move with the foot instead of against it.
Alpaca’s unique fiber structure means the terry loops insulate, wick, and breathe all at once. Feet stay warm, dry, and fresher for longer, even in heavy boots and fluctuating temperatures. That makes the Survival Over-The-Calf an ideal choice for cold-weather work, winter sports, hunting, and any multi-hour adventure in demanding terrain.
Available in charcoal grey with blue soles.
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Over-the-calf height – rises about 4" above a standard crew and 2" above boot height for extra coverage and warmth. (Size Large used, other sizes scaled proportionally)
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Heavy-weight, full terry loop cushion from cuff to toe for maximum insulation and shock absorption.
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Triple-length stay-up welt – holds the sock in place on the leg all day long, even in high-activity use.
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Reinforced heathered royal blue heel, sole, and toe for added durability and abrasion resistance.
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Elastic arch support band for a secure, performance fit that helps reduce foot fatigue.
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Naturally insulating alpaca fiber – warm without bulk, comfortable across a wide range of temperatures.
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Moisture-wicking and breathable – helps keep feet dry and comfortable in heavy boots and extreme conditions.
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Soft, cozy, and hypoallergenic compared to many wool blends.
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Made in the USA with U.S.-grown alpaca.
Standard US sock sizing: Medium 7-10; Large 10-13
Content:
78% U.S. Alpaca, 20% Recycled Nylon, 2% Lycra
Care:
Turn Inside Out and Machine Wash on Gentle Cycle with Cool Water,
Tumble Dry on Low Heat or Lay Flat to Air Dry
Do not use Fabric Softener and Avoid Laundering with Heavy, Bulky Items.
