Semibold Apple Performance Crew Socks

High-Performance Coolmax® Meet the Active Energy of Running & Training.
$144.00
Size
15% Off First Order · Code: FIRST15OFF
True to size. If you're between sizes, size up.
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Comfort guarantee
BEST FOR
Training & Gym
Running
CUSHION
Medium Cushion Medium Cushion
FIT
FEEL
WHY YOU’LL LOVE THIS

Dryness in motion. Engineered with high-performance Coolmax® fibers, these socks pull sweat away instantly to keep you light and distraction-free. We’ve added targeted Achilles and toe reinforcement to shield against friction during explosive lateral cuts, while moisture-wicking compression reduces foot fatigue. Built for those who move fast and never want to feel the rub.
PRODUCT DETAILS

Material Benefits

  • Fast Moisture Removal: Keeps feet dry
  • Ventilated Design: Enhances airflow
  • Reduced Friction: Minimizes irritation
  • Cooling Relief: Controls heat
  • Durable Quality: Holds form

Key Features

Dual-Side Forefoot Cushioning
Reduces friction during quick direction changes
3-in-1 Arch Support System
Enhances support, cushioning, and stability
Breathable Instep Mesh
Keeps feet cool and dry during movement
Graduated Compression Support
Improves circulation and reduces fatigue
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
Stride Lock
Keeps socks secure without slipping
Midfoot Hugging Ring
Holds your foot in place for stability
Breathable Toe Ventilation
Reduces moisture between toes
Achilles Comfort Padding
Prevents rubbing at the heel collar
Arch Spine
Reinforces natural arch support
Signature Smile
A playful touch that celebrates every step
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
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

Half Apple: Start Before You’re Ready.

Half Apple never waited to be complete. He grew in the middle of the New York city, where everything moves fast and nothing feels finished. One day, he realized—he didn’t need to be whole to begin. So he stepped forward, just as he was. Even half, he carried enough to move, to grow, to become.

If you’re drawn to Half Apple, you’re someone who doesn’t wait for perfect timing. You notice the details, trust your instinct, and take the first step anyway.

Adaptive Compression

Targeted arch support that gently hugs your feet to reduce fatigue and keep you feeling energized all day.

Achilles Shield

Reinforced padding at the heel and Achilles prevents friction, ensuring a distraction-free workout and no blisters.

Triple-Layer Support

A specialized three-layer knit that stabilizes your foot, providing a secure base for explosive, high-speed movements.

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 feature compression at the Achilles and arch?

We designed our Coolmax® series with moderate graduated compression for two critical reasons:

  • Stability: During high-intensity movement, it ensures the sock stays perfectly in place without sliding or bunching.
  • Recovery: Gentle pressure stimulates peripheral blood circulation, which helps reduce foot fatigue and that "heavy" feeling after a long workout. Semibold uses a moderate pressure profile, meaning you get all the performance benefits and increased sensory feedback without the discomfort of a "too-tight" fit.

We use a balanced compression level, supportive enough to enhance performance, but comfortable enough for extended wear without feeling tight or restrictive.

Can I wear Coolmax® socks in the winter? Will they feel cold?

Yes, especially for active winter sports. While Merino wool is better for static warmth, Coolmax® is ideal for winter activities where you still sweat (like indoor training or heavy-duty gym work). By keeping your feet dry, it prevents the "evaporative cooling" effect that happens when sweat turns cold against your skin, helping you maintain a consistent temperature.