[ Set Product ] Airfit 5_Five-Finger Foot Covers Thin Breathable Low-Cut Socks (4 pairs/8 pairs)

¥1,999

A Complete Guide to Measuring and Choosing Sock Sizes [Japanese/US/EU Conversion Chart Included]

"My toes have too much room," "the elastic is too tight around my ankle"...these might be due to incorrect size selection. This guide explains how to choose the right sock size, from correctly measuring your foot length to selecting socks based on age and purpose, including a conversion chart for Japanese, US, and European sizes.

All you need is paper and a ruler. The first step is to correctly measure your foot length (from heel to toe).

Sock sizing can vary slightly between brands and countries. It's safest to first determine your foot length (the distance from the back of your heel to the tip of your longest toe) and then choose the closest size using a conversion chart. Adjust the fit according to your purpose (commuting, exercise, cold protection).

1. How to Correctly Measure Foot Length (5 Steps)

Secure paper to the floor: Align the edge of the paper with a wall and secure it with tape so it doesn't move.
Stand with your heel against the wall: Distribute your weight evenly. Remove your socks and stand barefoot.
Mark the position of your longest toe: Draw a line at the tip of your longest toe (either your big toe or index toe).
Measure from the wall to the mark: Use a ruler to measure in "mm" (=foot length).
Measure both feet and use the longer one: Since there can be a difference between your left and right foot, use the measurement from the longer foot as your standard.

💡 Tip: Your feet tend to swell in the evening, so it's less likely to make a mistake if you measure twice, in the morning and evening, and choose the larger size.

2. Japanese/US/EU Size Conversion Chart

There may be variations depending on the brand. Please use this as a guideline (for half sizes, adjust up or down based on your preferred fit).

Japan (cm)	US (Men/Women)	EU	Approximate Sock Size (General)
22.0–24.0	US W5–7	EU 35–37	Women's S–M / Unisex S
24.5–26.0	US M6–8 / W7.5–9.5	EU 38–41	Unisex M / Men's S–M
26.5–28.0	US M8.5–10	EU 42–44	Unisex L / Men's M–L
28.5–30.0	US M10.5–12	EU 45–46	Men's L–XL

※ Sports/compression types may have a slightly tighter fit (adjust according to purpose).

3. How to Choose Socks by Age and Purpose

Kids

Since children grow quickly, choose a slightly larger size. Ribbed cuffs are recommended to prevent slipping.
Socks with heel markers are convenient for school or physical education.

Women's

For pumps and loafers, thin socks with non-slip inner features are comfortable.
For cold weather, consider wool blend/double-knit; for swelling, consider light compression.

Men's

For business, thin crew socks with reinforced heels and toes last longer.
For sports, sweat-wicking and quick-drying + arch support are ideal.

Sports/Outdoor

Running/Gym: Thin to medium-thick quick-drying mesh + arch support
Hiking: Medium to thick merino wool blend + essential to check compatibility with shoes

4. Relationship Between Sock Length (Ankle/Crew/Knee-High) and Size

Ankle length: Popular for sneakers. For low-cut shoes, use ones with non-slip features.
Crew length: Most versatile. The tightness at the calf changes, so check the cuff design carefully.
Knee-high socks: For warmth and compression. If your calves are thicker, consider sizing up.

💡 Point: Even with the same foot length, the fit changes depending on the thickness of your calves. Be careful with prolonged tightness from compression types.

View Women's Socks View Men's Socks View Kids' Socks Foot Health Check (Free PDF)

Frequently Asked Questions

If I'm unsure about the size, should I go larger or smaller?

For everyday wear, slightly larger is generally better, while for sports or compression socks, slightly tighter is the guideline. If in doubt, also check the return policy.

What's a safe size to choose for a gift?

If you don't know the recipient's shoe size, Unisex M (approx. 24.5–26.0cm) made of highly stretchy material is a safe bet.

Sock Style Guide (Free PDF)

Seasonal, color, and styling tips in one guide.

Complete Sock Care Guide (Free PDF)

Basic washing, drying, storage, and material-specific care.

Foot Health Checklist (Free PDF)

5 self-checks + daily care.

Product Details

SOCKSLOVER SELECT

[ Set ] Air Fit 5-Toe Foot Covers - Thin, Breathable, Low-Cut Socks (4 pairs / 8 pairs)

These thin, breathable 5-toe foot cover socks are designed for comfort. The low-cut style provides a barefoot feel.

Why Choose These Socks

5-toe design allows for comfortable, unrestricted toe movement
Thin and breathable, preventing stuffiness
Low-cut design stays hidden in shoes
Available in convenient 4-pair or 8-pair sets

5-Toe Foot Covers Designed for Comfort and Functionality

Air Fit 5-Toe Foot Covers are made from 97% nylon thin velvet fabric, offering both breathability and a great fit. The individual 5-toe design allows for natural toe movement and a comfortable feel. The low-cut style is ideal for pumps and sneakers, remaining invisible and subtly enhancing your footwear. Choose from a 4-pair or 8-pair set to suit your needs and preferences.

Recommended for These Situations

Supports a comfortable day at the office
Worn discreetly with pumps or loafers
Also recommended for humid summer seasons
Convenient as spares for travel or business trips

Simple and Easy-to-Use Basic Design

Available in five colors: black, white, gray, pink, and fresh. The simple design blends naturally with any outfit, enhancing your everyday style.

Rich Color Variation to Choose From

From subdued black and gray to skin-tone-friendly fresh and vibrant pink, a wide range of colors is available. You can choose your preferred color and quantity in either 4-pair or 8-pair sets.

Product Images

Product Information

Product Name	[ Set ] Air Fit 5-Toe Foot Covers - Thin, Breathable, Low-Cut Socks (4 pairs / 8 pairs)
Category	Socks
Material	Nylon
Size	One Size
Weight	Please check the product page.
Closure	Please check the product page.
Pocket	Please check the product page.
Color	Black, White, Gray, Pink, Fresh

Shop with Confidence

SOCKSLOVER is an online store operated for customers in Japan.

We clearly state shipping periods, return conditions, and contact information to ensure you can shop with peace of mind.

Shipping and Returns

Shipping: SOCKSLOVER offers free shipping on all products. After placing your order, we typically prepare for shipping within 2-4 business days, and delivery takes approximately 7-14 business days after dispatch.

Returns & Refunds: In case of product defects, we offer a refund or reshipment. Please refer to our return and refund policy for details.

Frequently Asked Questions

Q. What is the size?

A. It is available in one size.

Q. How many pairs are in a set?

A. You can choose between a 4-pair set or an 8-pair set.

Q. How should I wash them?

A. Please check the product page.

Reviews

Shipping & Returns

Shipping

SOCKSLOVER is proud to offer worldwide shipping.
After your order is completed, it usually takes 2-4 business days for us to prepare it for shipping.
We do our best to deliver your order as quickly as possible.

Once your order has been shipped, delivery typically takes 7-14 business days, depending on the country or region.
*Please note that delivery may be delayed due to holidays, natural disasters, pandemics, or other unforeseen circumstances.

Returns

Our return policy is 30 days. If 30 days have passed since you received your item, we cannot offer you a refund or exchange.

[ Set Product ] Airfit 5_Five-Finger Foot Covers Thin Breathable Low-Cut Socks (4 pairs/8 pairs)

A Complete Guide to Measuring and Choosing Sock Sizes [Japanese/US/EU Conversion Chart Included]

1. How to Correctly Measure Foot Length (5 Steps)

2. Japanese/US/EU Size Conversion Chart

3. How to Choose Socks by Age and Purpose