find the pair built for your day.
Premium alpaca performance socks for work, outdoor, sport, and everyday wear. Filter by collection, weight, height, use, and color.
built for different days. held to the same standard.
Whether you need lightweight breathability, all-season versatility, boot-ready support, or heavyweight warmth, each Altera collection is built to perform in a specific range of use, weather, and terrain.
Thrive
Lightweight comfort for warm days, active routines, and everyday wear. Thrive is Altera’s lightest line—built for breathable, low-bulk performance when you want your socks to disappear and keep moving.
Surino™
A lightweight sport line made with Altera’s Surino™ alpaca-merino blend for cool, snug, fast-drying comfort. Built for runs, rounds, reps, and active days that demand less distraction.
Conquer
Low-bulk performance for long days that move across trail, travel, training, and work. Conquer delivers lightweight alpaca comfort with the durability and versatility to handle whatever the day has in store for you.
Explore
The all-season middle ground. Explore balances cushioning, breathability, and durability for daily wear, light trails, travel days, and everything between routine and adventure.
Prevail
Built for boots, long days, and demanding wear. Prevail brings midweight cushioning, durable construction, and steady comfort to workdays, hikes, and variable weather conditions.
Adventure
Maximum-weight performance for cold, rough, and extended wear. Adventure is built for insulation, boot compatibility, and serious staying power when conditions demand more from your socks.
Micro
6" Crew
Micro
9" Crew
Micro
Ankle
9" Crew
14" OTC
Micro
6" Crew
9" Crew
14" OTC
9" Crew
14" OTC
If they wear out, we replace them.
No expiration, no fine print. Customer covers return shipping. Every pair on this page.
Read the warranty →