Semibold Hamster Performance Ankle Socks

Breathable Coolmax® ankle socks engineered for quick-dry performance and all-day comfort in running and gym workouts.
$136.00
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BEST FOR
Training & Gym
Running
CUSHION
Medium Cushion Medium Cushion
FIT
FEEL
WHY YOU’LL LOVE THIS

Turn your routine into a breakthrough. This sleek black sock features a "Hamster on a Wheel" design precisely at the inner arch, where the extra padding provides essential structural support for peak performance. The soft, Coolmax® infused fabric pulls moisture away from the skin, ensuring that no matter how many miles you "spin," your feet stay cool, dry, and revitalized.
PRODUCT DETAILS

Material Benefits

  • Sweat-Wicking System: Keeps feet fresh and dry
  • Breathable Zones: Enhances airflow
  • Friction Defense: Prevents irritation
  • Cooling Balance: Manages heat buildup
  • Durable Performance: Lasts through washes

Key Features

Breathable Instep Mesh
Keeps feet cool and dry during movement
Anatomical fit
Designed to match your natural foot shape
Hand-Finished Seamless Toe
Minimizes friction for a smoother feel
Target Cushion
Absorbs impact in high-pressure areas
Breathable Toe Ventilation
Reduces moisture between toes
Midfoot Hugging Ring
Holds your foot in place for stability
Signature Smile
A playful touch that celebrates every step
Dual-Side Forefoot Cushioning
Reduces friction during quick direction changes
Curve padding
Adds soft support to stabilize your arch
MATERIALS & CARE

65% CoolMax®, 32% Nylon, 3% Lycra

Machine wash cold
Turn inside out
Do not dry clean
Do not iron
Tumble dry low
No bleach
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ADULT SIZING

True to size. If you're between sizes, size up.

SOCK SIZE
S/M
M/L
ONE SIZE
US
W5–9 / M3–7
W9½–12½ / M½–13
W5–12½ / M3–13
EU
36-40
41-46
36-46
UK
3-7
8-12
3-12
FR
36-38
38-40
36-40
IT
40-42
42-44
40-44
JP
7-9
9-11
7-11
KR
55-56
66-77
55-77
AU
8-10
10-12
8-12
DE
34-36
36-38
34-38
DK
34-36
36-38
34-38

 FOOT MEASUREMENTS
S/M
M/L
IN
8.5-10
10-11
CM
22-25.5
25.5-28

TOE SOCKS SIZING

SOCK SIZE
 ONE SIZE
US
W5–9 / M3.5–7.5
EU
35–40
UK
3-7
FR
35-38
IT
39–42
JP
22-25.5
KR
220–255
AU
5–9
DE
34-38
DK
34-38

BABY SIZING

AGE 
FOOT LENGTH
EU SHOE SIZE
US SHOE SIZE
6 months -3 Years
4.3–5.1 in / 11-13 cm
16-21
1.5-6

DESIGN STORY

Running Hamster: The Strength in Every Step.

Running Hamster spins his little wheel every day, in a world no bigger than his cozy home. Inside his gentle heart, something magical happens—each turn makes him a little steadier, a little braver, a little more skilled. If you’re drawn to Running Hamster, your hidden personality may be someone who finds gentle luck in patience, knowing that small, repeated steps can build a beautifully strong life.

Soft Internal Buffer

Specialized padding reinforces the inner arch to support your natural foot posture, while targeted zones absorb the impact of every stride.

Dynamic "Hugged" Fit

Our signature Hugging Ring secures the midfoot, providing a stable foundation that moves with you, never against you.

High-Efficiency Ventilation

Full-foot mesh coverage maximizes airflow, working to pull sweat away and keep you feeling light on your toes.

FAQ

Which seasons and activities are best for Coolmax® socks?

While Coolmax® is the undisputed champion for summer heat and high-intensity training (like HIIT, running, and fitness), it is truly a multi-season fiber. Its ability to keep feet dry makes it excellent for any scenario where you might sweat, from spring hiking to intense indoor gym sessions. It is the go-to choice for athletes who prioritize thermal regulation and dryness year-round.

Do these Coolmax® socks help prevent blisters during high-intensity training?

Yes. Blisters are primarily caused by the combination of heat, moisture, and friction. Because Coolmax® eliminates moisture and reduces "hot spots" through its rapid-dry technology, it creates a much smoother environment for your skin. When paired with our anatomical fit, these socks act as a protective barrier that significantly lowers the risk of friction-induced blisters during your most demanding training sessions.

Why do Semibold Coolmax® socks feel thicker than others? Will they be too hot for summer?

While Semibold Coolmax® socks may have a more substantial feel, this is a deliberate design for professional-grade impact protection. We discovered that high-intensity training—involving rapid direction changes and repetitive impact—often leads to foot fatigue and pain in the heels and soles.

To solve this, we integrated Targeted Cushioning into high-stress zones: the forefoot, heel, and the bony areas on both sides of the toes. Additionally, we added moderate gradient compression at the Achilles tendon to stimulate circulation and reduce soreness.

Don’t worry about the heat: Although the structure is more protective, the Coolmax® fibers act as a high-speed ventilation system. Using capillary action, they instantly pull heat and sweat away from your skin to the fabric surface for rapid evaporation. This ensures that even with the extra cushioning, your feet remain cool, dry, and breathable, never feeling "stuffy" even during the most intense summer workouts.

How should I wash and care for my Coolmax® socks?

To maintain the high-speed wicking technology and fiber integrity of your technical socks, follow these simple steps:

  • Machine Wash Cold: Use a gentle cycle (30°C) to protect the specialized Coolmax® fiber structure.
  • Wash Inside Out: Ensures a deep clean of the interior while protecting exterior patterns from friction.
  • No Fabric Softeners: Critical: Softeners clog the capillary channels, reducing the fabric’s ability to move moisture.
  • Air Dry or Low Tumble: These are rapid-dry socks; air drying is best to preserve the elastic Lycra for a long-lasting fit.
  • Avoid Bleach & Ironing: High heat and harsh chemicals break down synthetic polymers and ruin the technical performance.