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Semibold Sapphire Merino Wool Quarter Socks

Merino wool socks engineered for moisture-wicking performance and lightweight everyday wear.
$20.00
Pack
Unisex Size
15% Off First Order · Code: FIRST15OFF
True to size. If you're between sizes, size up.
Free shipping $49+
30-day easy returns
Comfort guarantee
BEST FOR
Hiking & Outdoor
Running
Everyday
CUSHION
Medium Cushion Medium Cushion
FIT
FEEL
WHY YOU’LL LOVE THIS

Built for the quiet achiever, Sapphire offers a "second-skin" fit with the luxurious softness of Merino wool. The Yin-Yang blue tones create a visual flow that mirrors the fluidity of your stride. Featuring Target Cushioning and a high-stretch knit, these socks provide the stability you need to build your own momentum while keeping your feet dry and odor-free.
PRODUCT DETAILS

Material Benefits

  • Climate Adaptive: Keeps feet warm in cold and cool in heat
  • Moisture Control: Moves sweat away quickly
  • Odor Defense: Keeps feet fresher for longer
  • Soft Touch: Gentle, irritation-free comfort
  • Light Insulation: Warm without added weight
  • All-Day Wear: Built for comfort and movement

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
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
Arch Spine
Reinforces natural arch support
Curve padding
Adds soft support to stabilize your arch
Breathable Toe Ventilation
Reduces moisture between toes
Signature Smile
A playful touch that celebrates every step
MATERIALS & CARE

75% Merino wool, 22% Nylon, 3% Lycra

Machine wash cold
Turn inside out
Air dry
Tumble dry low
No bleach / softener
Do not iron
SHIPPING & RETURNS

Free Shipping Over $49 + 30-day Easy Returns

Shipping & Delivery Details
Return & Exchange Details
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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

Sapphire: The Power of Stillness.

Sapphire is the ocean before the storm—a deep, rhythmic calm that hides a massive, surging power. The transition from Light Blue to Navy Blue embodies the Yin and Yang of the tide: the sparkling surface and the silent, unstoppable current beneath. This is for the soul that gathers strength in silence, preparing for the moment to strike with beautifully unstoppable force. It is the color of focus, depth, and the radiant energy of a wave that knows exactly when to break.

Dynamic Arch Support

The Arch Spine works with your foot's natural mechanics to boost performance and minimize mid-run fatigue.

Impact Absorption Padding

High-density padding in key strike zones ensures every landing is soft and every take-off is stable.

Breathable Climate Control

Open-knit instep mesh allows for maximum air exchange, maintaining the perfect micro-climate inside your shoes.

FAQ

Are they suitable for everyday wear?

Definitely. Their versatile, low-profile fit and playful designs make them the ultimate everyday luxury. They provide more comfort and better odor protection than standard cotton socks.

Are Merino wool socks warm enough for winter?

Merino wool is world-class for thermal insulation. The fibers have a natural crimp that traps dead air, creating a barrier that retains body heat while remaining breathable, keeping your toes cozy in freezing conditions.

Do Merino wool socks smell after use?

Unlike synthetic socks that trap odors, Merino wool neutralizes smells naturally. You can often wear them multiple times between washes while maintaining a fresh scent.

Is Merino wool itchy on sensitive skin?

No. High-quality Merino wool is ultra-fine and soft. Itchiness is caused by thick, stiff fibers. By using ultra-fine diameter yarns, our socks are hypoallergenic and gentle, making them safe and comfortable for even the most sensitive skin.

How should I wash and care for my Merino wool socks?

To preserve the fiber integrity, machine wash on a cold, gentle cycle with similar colors. We recommend air drying or tumble drying on low heat. Avoid bleach and fabric softeners to keep the natural performance features intact.

What is Merino wool, and how does it differ from regular wool?

Merino wool is a natural technical fiber known for its superior softness and performance. Unlike
traditional wool, which can be coarse and itchy, Semibold utilizes the finest micron Merino yarn available for hosiery. This ensures a "second-skin" fit that is incredibly soft and smooth, eliminating the "bulky" feeling often associated with winter socks.