Father's Day Sale — 35% off with code Dad35 Shop Now
Altera Performance

Built for hard wear. Backed for life.

Premium natural-performance socks engineered for real conditions. Every pair backed unconditionally for life — if they ever wear out, we replace them.

Over-the-Calf, OTC, Alpaca Socks

Reach new heights with our newly extended 14" over-the-calf (OTC) alpaca socks.  Crafted from premium alpaca fibers, these socks offer superior softness, warmth, and durability. Perfect for all-day wear, whether you're at work or play, these socks provide unmatched comfort and style. Elevate your sock game with our latest innovation in alpaca socks today!

Availability
Price
$
$
Size
Sort by
Conquer Lightweight 14" OTC Alpaca Sock
$30.00

72 reviews
Sale
Limited Edition Conquer Lightweight 14" OTC Alpaca Sock
$20.00 $30.00

34 reviews
Prevail Mid-Weight 14" OTC Alpaca Sock
$40.00

91 reviews
Adventure Heavyweight 14" OTC Alpaca Sock
$40.00

108 reviews
Backed for life

If they wear out, we replace them.

Every Altera pair carries the unconditional Lifetime Warranty. No fine print, no expiration, no original-purchaser clause.

See the warranty →
×