Surino™ · Lightweight Precision. Sport-Ready Performance.

Surino Lightweight Sport 9" Crew Alpaca Sock

The Surino Sport Crew is where technical performance meets natural comfort.

Natural White Surino Lightweight 9" crew alpaca sock right front view
Engineered Durability
Blend Ratios + Reinforcement
Temperature Regulation
Cool When Hot. Warm When Cold.
Moisture Management
Dry Feet. Blister Free.
Odor Resistant
Antimicrobial
Surino™ · Lightweight Precision. Sport-Ready Performance.

Surino Lightweight Sport 9" Crew Alpaca Sock

The Surino Sport Crew is where technical performance meets natural comfort.

$26~$9 / year based on three years of wear

The Surino Lightweight Sport 9" Crew alpaca socks combine sleek, breathable comfort with serious performance for athletes, runners, and everyday movers. Featuring our ultra-soft Surino™ blend—suri alpaca and merino wool—this sock is built for speed, sweat, and staying power.

Color Natural
Size Small

Unconditional Lifetime Warranty

If they ever wear out — heel, toe, cuff, anything — we replace them. No fine print, no original-purchaser clause, no expiration on any line we make.

See full warranty →
Why Surino™ performs

natural softness with everyday performance.

Surino™ combines the smooth comfort of suri alpaca with the familiar softness and stretch of merino — then builds it into a lightweight sock made for movement, daily wear, and long hours on your feet.

01
suri alpaca comfort
Soft suri alpaca brings natural moisture movement, breathable comfort, and a smooth feel to a lightweight performance sock.
Mechanism · Suri alpaca fiber
02
Merino softness
Merino wool adds familiar next-to-skin softness and stretch, helping the sock move comfortably through active and everyday wear.
Mechanism · Merino wool blend
03
Movement-mapped fit
Targeted zones support comfort where your foot moves most, while breathable areas help keep the fit light and low-bulk.
Mechanism · Zone-mapped construction
04
freshness for repeat wear
Natural fibers help resist odor, supporting fresher-feeling comfort through long days, active sessions, travel, and regular rotation.
Mechanism · Natural odor resistance
Specifications
Line
Surino™ · Sports · Everyday
Height
9" Crew (mid-calf)
Weight
Lightweight · Targeted Cushion
Blend
30% Alpaca · 24% Merino · 45% Nylon · 1% Lycra
Features
Suri Alpaca + Merino blend, Reinforced heel and toe, built-in arch support cushioning, mesh ventilation, movement-mapped zones at impact points
Best For
Golf · Walking · Training · Sports · Travel · Everyday wear
Care
Machine wash cold · Tumble dry low · No bleach
Warranty
Unconditional lifetime — any wear-out, any age
Build your rotation

Same blend system. Different builds.

Most Altera customers run a multi-pair rotation — same engineered blend, different cushion and height for what the day demands.

Pair with
Natural White Surino Lightweight micro alpaca sock right front view
Surino Lightweight Sport Micro Alpaca Sock
$22
Pair with
Thrive Lightweight 6" Crew Alpaca Sock
Thrive Lightweight 6" Crew Alpaca Sock
$24
Pair with
Sage Green Explore Midweight 6" Crew alpaca sock right front view
Explore Mid-Weight 6" Crew Alpaca Sock
$28
REAL WEAR. REAL FEEDBACK.

REVIEWS

See what customers say after wearing Altera where socks actually have to perform: work, outdoor, sport, travel, and everyday life.

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