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All Collections
Men's
- Shop by Weight
- Shop by Activity
  - Biking
  - Golfing
  - Hiking
  - Hunting
  - Pickleball
  - Running
  - Skiing & Snowboarding
  - Workwear
- Shop by Height
  - Micro
  - Ankle
  - Mid Crew
  - Crew
  - OTC
- Shop Graphic T-Shirts
- Shop Accessories
Women's
- Shop by Weight
- Shop By Activity
  - Biking
  - Golfing
  - Hiking
  - Hunting
  - Running
  - Pickleball
  - Skiing & Snowboarding
  - Workwear
- Shop by Height
  - Micro
  - Ankle
  - Mid Crew
  - Crew
  - OTC
- Shop Accessories
- Shop Graphic T-Shirts
Accessories
Paca Points
Find Your Sock
Unconditional Lifetime Warranty
Learn More

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Sage Tweed
Brown Tweed
Gray Tweed

Explore Mid-Weight 6" Crew Alpaca Sock

Gray Tweed
Black
Sage Tweed

Explore Mid-Weight Micro Alpaca Sock

Sale Sale Sale Sale Sale Sale Sale Sale Sale Sale Sale Sale Sale Sale Sale Sale Sale Sale Sale Sale Sale

Kentucky Royalty Alpaca Sportsman Hat: Camo

$100.00 $175.00

Brown Tweed
Sage Tweed
Gray Tweed

Prevail Mid-Weight 14" OTC Alpaca Sock

Sage Tweed
Brown Tweed
Gray Tweed
+1

Prevail Mid-Weight 9" Crew Alpaca Sock

Natural
Black

Surino Lightweight Sport 9" Crew Alpaca Sock

Natural
Black

Surino Lightweight Sport Micro Alpaca Sock

The Altera Digital Gift Card

Coffee
Gray
Rust
+1

Thrive Lightweight 6" Crew Alpaca Sock

Coffee
Gray
Rust
+1

Thrive Lightweight Micro Alpaca Sock

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First Order? 40% Off!

Backed by our Unconditional Lifetime Warranty, there’s zero risk. What do you have to lose? Try a pair and feel the difference.

Save 40% on your first order with code: WELCOME40

Altera Alpaca — Performance Redefined.

At Altera, we believe your gear should work as hard as you do. That’s why we’ve redefined performance from the ground up—starting with socks. Using the natural power of alpaca fiber, we’ve created socks that outperform cotton and synthetics in comfort, durability, moisture control, and temperature regulation.

Our commitment doesn’t end with the sock. Every pair is backed by our Unconditional Lifetime Warranty—because performance should never be a question mark.

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