Prevail 12″ Over the Calf Sock


The Prevail sock is a medium weight premium alpaca hiking, hunting, camping and sport sock enjoyed by all who love being outdoors. They wick moisture away from your feet to keep them dry. Their silver infused alpaca is anti-microbial, prevents sweat and prevents stinky feet over multiple days of use.

Viewing the size chart, select the smaller size if you are between sizes. For example, if you wear a men’s size 9 shoe select a medium.

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The Altera Alpaca Prevail 12″ over-the-calf sock is a medium weight performance sock.  It is the choice for the sportsman and sportswoman in all of us. Features include premium terry loop construction throughout the entire sock with a reinforced heel and toe and built-in arch support.  Moisture is wicked away from your feet so if you are in the most extreme conditions, you will want the Prevail Sock on your feet. This is the choice sock for those that use taller boots for hiking, hunting or even skiing.

Altera socks are flame resistant. They are naturally anti-microbial. Altera then enhances the antibacterial properties with an exclusive Silver Infusion Technology. And, silver enables multiple odor-free wears of our alpaca socks without laundering. Silver Infusion in the socks mean NO STINK! You can wear your socks for multiple days on longer hunting and camping trips without worry of discomfort or athlete’s feet. The Prevail Sock is also available in a 9″ crew style. Made in the USA for Altera Alpaca.

Additional information

Weight .5 lbs
Dimensions 10 × 4 × 1 in

 Alpaca features a unique hollow core which allows it to wick moisture away from your skin Alpaca fiber provides up to 30% greater insulation that Merino wool in either hot or cold conditions. Total thermal regulation even when wet!

Odor Free

Silver Infusion Technology: Alpaca fiber is blended with yarn infused with precious metals for naturally odor-free and antimicrobial comfort

Alpaca fiber is processed with a biodegradable citrus-based cleaner. Altera High-Performance Fiber Technology is naturally anti-microbial and flame resistant. Altera enhances the antibacterial properties of the alpaca fiber with an exclusive Silver Infusion Technology, enabling multiple odor-free wears of our alpaca garments without laundering.


Care: Machine wash / never bleach. Tumbler dry low heat or hang dry. Turn inside out for best results.

Thermal Regulation

Thermal Regulation: Alpaca's superior hollow-core fiber insulation is warm in cool weather and cool in warmer weather. This helps regulate body temperature.


Medium, Large, X-Large


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