Running socks developed by GUTS-MAN in response to feedback received from 100 runners.

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\Coupon codes are now available! /
Extra 10% off
Coupon Code:SOCKSMAR2026
‐Valid at TATSUMI SOCKS FACTORY from JAPAN‐
Expiration Date: March 31, 2026
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Made in Nara,JAPAN
【Non-slip】 By dividing the total number of dots—1,436 on both feet—into three sections, body weight is distributed equally in all directions, reducing feelings of discomfort commonly felt with conventional socks to an absolute minimum.
【Reinforced toes】We thoroughly investigated the common problem of sock toes tearing—an issue with five toe socks—and reinforced each toe with nylon yarn.

【Long-established standards for five toe socks】 The stretch of each toe and the number of fabric stitches has been adjusted to allow for comfortable use by people with toes of varying lengths.
【Arch support】 Elastic yarn is used in each course of the arch portion of the sock. Wearer fatigue is reduced through optimal support across the arch portion of the foot, which easily tires.

【Ankle support】 Optimal compression around the ankles provides comfortable support and a perfect fit that hold your feet firmly.
【Tuck stitching】 The tuck stitch, a special technique that improves breathability and durability, is used in certain areas, with the added bonus of improved cushioning.

【2x deeper heels】 The heel portion of these socks is 2 times deeper than conventional socks, providing a perfect three-dimensional fit.
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What is GUTS-MAN?
GUTS-MAN is a brand of sturdy, highly functional socks made in response to demand from members of the Japanese Self-Defense Force. GUTS-MAN socks are actually used in the rigorous training of the SDF, and are even now an important part of their gear.
The toe socks, a particular favorite of the
SDF members, are a culmination of the skills and knowledge of the many Japanese
craftsmen under our umbrella—a long-standing sock manufacturer with over 97
years of history.
【We strive for high quality and courteous
response.
Established 97 years ago with pure focus
on socks.

Nara Prefecture is the region that produces the largest number of socks in Japan.
Socks made in Nara Prefecture are evolving every day, produced by artisans who have dedicated themselves to manufacturing with honesty and have continued to pursue the highest quality for decades.
Made in Japan five toe socks created together with customers.
Five toe socks are developed for the first time in Nara Prefecture, and take on their current form.
Our second president undertakes production
of a new type of five toe socks. While the prototype in circulation at the time
is a straight, heel-less type of sock, our company is the first in Nara
Prefecture to successfully add a heel to the socks.
We will ship the item from Japan.

We ship from Japan. Please choose your preferred shipping method. We ship within 1 to 3 business days after receiving your order.
Please note that during long vacations in Japan, it may take longer than usual.