Semibold Lightweight Athletic Ankle Socks Sky

Quick-dry athletic socks designed for breathable comfort during runs and workouts.
$120.00
Size
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Comfort guarantee
BEST FOR
Training & Gym
Running
CUSHION
Light Cushion Light Cushion
FIT
FEEL
WHY YOU’LL LOVE THIS

Fresh, dual-tone aesthetics meet high-performance endurance. These sky-blue ankle socks offer a weightless, supportive fit that feels as light as air. Beyond the color, you’ll experience a quick-dry, antimicrobial finish that keeps you fresh, plus a specialized padding system that guards your ankle bone against rough shoe edges.
PRODUCT DETAILS

Material Benefits

  • Quick-Dry Fabric: Rapid moisture evaporation for dry performance.
  • Wear-Resistant Structure: Maintains a smooth, polished look over time.
  • Odor-Reducing Technology: Keeps socks fresh during workouts.
  • Featherlight Fit: Lightweight comfort for high-output movement.

Key Features

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

97% Prime Nylon, 3% Lycra

Machine wash cold
Tumble dry low
SHIPPING & RETURNS

Free Shipping Over $49 + 30-day Easy Returns

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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

Sky Blue: A Breath of Infinite Calm.

Inspired by the clarity of an open sky, this design brings a sense of effortless ease to your most demanding training. By focusing on structural efficiency rather than visual complexity, we’ve created a sock that maximizes breathability and ground-feel. It’s designed to disappear on your foot, leaving you with nothing but a cool, sky-blue breeze as you chase your new personal best.

Adaptive Lightweight Stretch

The high-stretch nylon blend contours to your foot’s unique shape for a zero-distraction fit that enhances your natural agility.

Impact & Friction Buffer

Reinforced padding at the ankle bone and toes guards against impact and skin irritation, providing a safe, seamless training experience.

Ventilated Climate Control

Strategic mesh zones work to circulate air and vent heat, ensuring your feet stay temperate and dry from start to finish.

FAQ

Are Prime Nylon socks suitable for everyday wear?

Yes. While designed for performance, their lightweight feel, breathability, and durability also make them suitable for daily use. They are ideal for people who prefer a clean, minimal, performance-driven sock for both workouts and everyday movement.

Do Prime Nylon socks offer real moisture-wicking and quick-dry benefits?

Yes. Traditional nylon can often feel "sweaty," but Semibold’s Prime Nylon is structured to pull sweat away from the skin instantly. It promotes rapid evaporation, maintaining a breathable, dry environment for your feet throughout your workout.

Why are there fewer patterns on Prime Nylon socks?

To achieve an ultra-lightweight profile, we focus on the technical development of the knit structure rather than heavy decorative patterns. This ensures the sock remains thin, highly breathable, and functionally superior for speed and agility.

How should I care for my Prime Nylon socks to maintain their performance?

To maintain their technical performance

  • Machine wash cold on a gentle cycle.
  • Air drying is recommended to preserve the Lycra® elasticity.
  • Avoid fabric softeners and bleach, as they can interfere with the antimicrobial and wicking treatments.