Size Chart

Shoe Size (US)

Size|Medium|Large|XL

Men|6–9|9.5–12|12.5–15

Women|7–9.5|10–13|—

Note|Between sizes? We recommend sizing up.

Features +

• Climate control: Warm when it’s cold. Breathable when it’s hot.
• Dry & Fresh: Wicks sweat and naturally resists odor. No chemical treatments that wash out.
• Blister Defense: Smooth alpaca fiber, free of lanolin, eliminates friction from mile one to mile twenty.
• Durable by Design: Alpaca strength plus plaited nylon reinforcement where wear hits hardest.
• Low Bulk, Seamless Toe: Precision knit for a dialed fit inside your boot. Smooth finish, zero irritation.
• Universal Fit: No left or right. Simple kit management.

Materials +

Made in USA with imported yarn:

Designed in Wisconsin by outdoor enthusiasts and made in North Carolina.

• 32% Premium Peruvian Alpaca Fiber
• 64% Stretch Nylon
• 4% Spandex

Washing & care +

Wash cold and hang dry. Machine washing and drying tests have shown no damage.

Shipping +

Free US shipping on orders over $79

99-day money back guarantee +

We have a 99-day money back guarantee! Whether something wasn't quite right or you changed your mind, we've got you covered.