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夏の冷え性対策に靴下|エアコン冷え・オフィス冷え対策におすすめ4選

Socks to combat summer cold sensitivity | 4 recommended pairs for AC and office coldness

Do you ever find that even in the middle of summer, your feet get cold due to overly strong air conditioning in offices, commercial facilities, or on trains?

"Summer sensitivity to cold," particularly common among women in their 30s-50s with less muscle mass, is a growing concern in modern times with widespread air conditioning. Thick socks are too hot, but thin socks don't prevent the cold. And sandals or mules that expose your ankles make your feet even colder...

The smart way to solve this dilemma is with "five-toe socks." Summer coldness often stems from poor circulation, so warming your feet can help prevent it. If a single pair of socks can address both coldness and swelling, there's no reason not to try them.

This article will explain the causes and mechanisms of summer sensitivity to cold and introduce four recommended sock styles from Knitido.

Why Does Summer Sensitivity to Cold Occur? Causes and Mechanisms

Cause 1: Rapid Cooling of the Body Surface by Air Conditioning

In air-conditioned rooms, it's not uncommon for the temperature difference with the outside air to exceed 10°C. The ankles and calves, in particular, are far from the heart and at the extremities of the body, making it difficult for blood to reach them. When the body surface is rapidly cooled, the body constricts the surface capillaries to protect internal organs. This is the direct mechanism of "coldness."

Cause 2: Reduced Blood Flow Due to Prolonged Sitting

Desk work often involves sitting in the same posture for long periods, leading to inactivity in the calf muscles, often called the "second heart." When the calves are inactive, the pump function that returns blood from the feet to the heart declines, causing blood to pool in the feet, leading to swelling and coldness. The combination of summer air conditioning coldness and prolonged desk work can be considered the worst environment for aggravating sensitivity to cold.

Cause 3: Internal Cooling from Cold Drinks and Food

In summer, it's easy to consume ice cream and cold drinks, which can cool the internal organs and create a cycle that worsens overall sensitivity to cold. When external air conditioning coldness and internal coldness combine, cold feet can become chronic.

Reasons Why Socks Are Recommended for Summer Sensitivity to Cold

Wearing socks can help maintain foot temperature and is expected to aid blood circulation throughout the body from the feet. Five-toe socks, in particular, promote blood circulation in the toes because their structure, which encases each toe independently, allows the toes to spread naturally.

Additionally, high-crew socks that cover the calves can help alleviate swelling by providing moderate compression to the calves, supporting the muscle pump function.

For summer offices, keeping socks under your desk as a cold weather measure is convenient. Furthermore, the choice of material for "summer socks" is crucial. Thick winter socks would cause sweating, so the key is to choose "functional socks that can be worn in summer" that have sweat-wicking and quick-drying properties and appropriate warmth retention.

5 Recommended Socks for Summer Sensitivity to Cold and Air Conditioning

1. FIVE Tag High-Crew

These are a reliable pair for summer cold protection. They are high-crew socks from the FIVE series, equipped with five functions: grip, air cushion, arch support, 3D fit, and mesh, covering up to the calves.

The arch support gently stimulates the soles of your feet, providing refreshing support for your feet during desk work. They are perfect for wearing under your desk as an office air conditioning countermeasure, a reliable ally that simultaneously cares for "coldness + swelling."

FIVE Tag High Crew FIVE Tag High Crew

FIVE Tag High Crew

Regular price ¥2,970
Sale price Regular price
23-25cm 25-27cm
Grip Air cushion 3D fit Support

2. THREE Stripe High-Crew

This high-crew model features a stripe pattern as a design accent. With grip, air cushion, support, and 3D fit, they are also a reassuringly functional pair.

While they might seem suitable for winter, their breathable material composition makes them perfect for summer office use. The calf-length coverage means they also serve as warm socks when you're concerned about air conditioning cold.

The stripe design is subtle and blends naturally with office casual outfits.

THREE Stripe High Crew THREE Stripe High Crew

THREE Stripe High Crew

Regular price ¥2,970
Sale price Regular price
23-25cm 25-27cm
Grip Air Cushion Support 3D Fit

3. HOP Tie-Dye High-Crew

This high-crew model features a unique and fun tie-dye pattern. It's recommended for those who want "socks that are fun to wear, not just functional."

The colorful tie-dye pattern can brighten your mood. For those who spend a long time with their shoes off in the summer office, or those using them as indoor shoes for remote work, you can enjoy the pattern visible from your feet.

HOP Tie-Dye High Crew HOP Tie-Dye High Crew

HOP Tie-Dye High Crew

Regular price ¥2,750
Sale price Regular price
21-23 cm 23-25cm 25-27cm
Grip Air Cushion 3D Fit

4. THREE Standard Ankle

This is the first pair we recommend trying as an introduction to summer cold protection. It's ideal for those who find high-crew length too hot but still feel a slight chill. Since they are ankle-length, they are easy to wear for outings as summer socks and are useful for casual cold protection in situations where "your feet feel a bit cold indoors." Worn inside shoes, they maintain foot temperature while allowing breathability, also serving as cold protection on air-conditioned trains and in supermarkets.

THREE Standard Ankle THREE Standard Ankle

THREE Standard Ankle

Regular price ¥1,980
Sale price Regular price
21-23 cm 23-25cm 25-27cm
Grip Air Cushion Support 3D Fit

Summer Cold Protection: What to Do in Conjunction with Socks

Incorporate Stretching and Toe Exercises

During desk work, performing calf raises (moving your toes up and down) or wiggling your toes about once an hour can stimulate the calf muscle pump and promote blood circulation. Combining socks to maintain foot temperature with regular exercise will enhance the effectiveness of cold protection.

Use with a Lap Blanket

In addition to socks on your feet, covering your knees and thighs with a lap blanket can prevent your core body from getting cold. The double cold protection of socks + a lap blanket is a classic style for strongly air-conditioned offices and movie theaters.

Consciously Drink Warm Beverages

In summer, it's easy to drink too many cold beverages, but to prevent internal coldness, consciously incorporate warm tea, hot water, or ginger tea. Combining external sock care with internal warming activities can help improve summer cold sensitivity.

Frequently Asked Questions (FAQ)

Q. Won't thick socks make my feet sweaty in summer?

A. Knitido socks often use moisture-wicking and quick-drying materials, designed to prevent stuffiness even for indoor use in summer.

Q. Do five-toe socks really improve coldness?

A. Many people feel warmer due to improved blood circulation in their toes. However, the causes of cold sensitivity vary by individual, so socks alone may not completely resolve all cases.

Q. Are there socks I can wear with shoes in the office?

A. Ankle-length socks are generally easier to wear with pumps or flats. They can be used to keep your feet warm inside your shoes while preventing cold from air conditioning. High-crew models are recommended for those who spend a lot of time with their shoes off (remote work, using indoor slippers).

Q. I suffer from summer cold sensitivity, which one should I try first?

A. For beginners, THREE Standard Ankle is recommended. You can experience all its features: grip, air cushion, support, and 3D fit. If you wish to continue with serious cold protection, please try a high-crew model (e.g., FIVE Tag High-Crew).

Summary: Combat Summer Coldness with a Double Approach of "Socks x Lifestyle Habits"

There's no need to give up on summer cold sensitivity as just a matter of constitution. By managing foot temperature in air-conditioned environments and assisting calf blood circulation with socks, combined with regular exercise and hydration, you can take measures against summer coldness.

High-crew length socks are recommended for office cold protection, covering up to the calves while promoting toe blood circulation with their five-toe design. If you feel too hot, please try an ankle-length type first.

この記事で紹介した商品

FIVE Tag High Crew

Regular price ¥2,970
Sale price Regular price
23-25cm 25-27cm
Grip Air cushion 3D fit Support

THREE Stripe High Crew

Regular price ¥2,970
Sale price Regular price
23-25cm 25-27cm
Grip Air Cushion Support 3D Fit

HOP Tie-Dye High Crew

Regular price ¥2,750
Sale price Regular price
21-23 cm 23-25cm 25-27cm
Grip Air Cushion 3D Fit
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