Free Arm Shirt 01
Light Cotton Ai-Doro

>> This item receives free shipping worldwide.
This Item is here while supplies last.
This fabric feels crisp but still provides improved breathability and lightness for comfort.
The special weaving technique alternates between highly twisted and intentionally looser twisted yarns creating a unique dry touch. Our new lightweight natural cotton fabric is custom made in Japan. Pre-washed to fit comfortably the first time you wear this shirt. Garment dyed so that with use it will age beautifully. We made this shirt for everyday freedom. Handmade in Japan.


Sized Small, Medium, and Large. Designed to fit various bodies and still look good. Unisex with size range from ladies’ small to mens’ large.

Please email us with your questions about size, fabric, or fit anytime.

Why do we make so few sizes?

We pattern our clothing to fit as many bodies as we can. Less size variation also means less wasted fabric and less overproduction.

Clothing for men? Or women?

Postalco items have always been non gendered. Beginning with the very first Legal Envelopes we made back in 2000.


Light Cotton

Lightweight natural cotton is created in Japan. The special weaving technique applied alternates between highly twisted yarns and intentionally looser twist yarns creates a unique ‘dry’ touch. This weaving technique helps give the fabric a crisp feeling but still allows improved breathability and lightness for comfort.


・Color will fade and transfer due to natural dye.
Wash separately from other items as the color may bleed.
・Delicate machine wash 30℃ with like colors. Turn the shirt and collar inside out to reduce color fade.
・Hand wash to reduce color fade.
・Warm iron as needed, or dry clean.
・Do not bleach, do not use stain remover.
・Shade dry only, no tumble dry.
・100% cotton

Gift Wrapping

Gift wrapping may be a cloth bag or a paper bag. Wrapping materials used will vary depending on the product type and size. Please note that we are not able to accept requests for specific wrapping materials. If you would like to have multiple items wrapped together, or if you would like to wrap only some items, please tell us in the memo box. If you do not specify, we will wrap each item individually.

Example of what to write in the memo field:
"Notebook (light blue) and notebook (dark blue) gift-wrapped together, and Bag- gift-wrapped separately. etc. "

Order receipt
If you choose to receive gift wrapping, we will not include an order receipt that shows the price. Please contact us if you would like to receive a receipt by email.


Worldwide Shipping
We ship worldwide via DHL or other. Shipping usually takes 7-10 days from the dispatch date.
Shipping charges vary by country and are automatically selected according to the shipping address. The shipping charges for each region are as follows.

Order Price..............Shipping Cost
Zone 1
$449.99 and less...............$35
¥$450 and charge

Zone 2
$449.99 and less...............$60
$450 and charge

Zone 3
all shipping......................$100

▼What is my shipping zone?

Zone 1 (North America, Asia)
American Samoa, Brunei, Canada, China, Guam, Hong Kong, South Korea, Macau, Malaysia, Marshall Islands, Mexico, Federated States of Micronesia, New Zealand, Northern Mariana Islands, Palau, Philippines, Singapore, Tahiti, Taiwan, Thailand, United States of America, Vietnam

Zone 2 (Asia, Oceania, Europe)
Australia, Austria, Bangladesh, Belgium, Bhutan, Bulgaria, Cambodia, Cook Islands, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Fiji, Finland, France, Germany, Greece, Hungary, Ireland, Italy, India, Indonesia, Lao P.D.R., Latvia, Liechtenstein, Lithuania, Luxembourg, Kiribati, Malta, Monaco, Myanmar, Republic of Nauru, New Caledonia, Netherlands, Niue, Norway, Papua New Guinea, Poland, Portugal, Romania, Samoa, San Marino, Slovakia, Slovenia, Solomon Islands, Spain, Sweden, Switzerland, Timor-Leste, Tonga, Turkey, Tuvalu, United Kingdom, Vatican City, Vanuatu

Zone 3 (Middle East, South America, Africa)
Afghanistan, Albania, Algeria, Andorra, Angola, Anguilla, Antigua, Argentina, Armenia, Aruba, Azerbaijan, Bahamas, Bahrain, Barbados, Belarus, Belize, Benin, Bermuda, Bolivia, Bonaire, Bosnia and Herzegovina, Botswana, Brazil, Burkina Faso, Burundi, Cameroon, Canary Islands, Cape Verde, Cayman Islands, Central African Republic, Chad, Chile, Colombia, Comoros, Congo, Democratic Republic of the Congo, Costa Rica, Cote d’Ivoire, Cuba, Curacao, Djibouti, Dominica, Dominican Republic, Ecuador, Egypt, El Salvador, Eritrea, Ethiopia, Falkland Islands, Faroe Islands, French Guyana, Gabon, Gambia, Georgia, Ghana, Gibraltar, Greenland, Grenada, Guadeloupe, Guatemala, Guernsey, Guinea Republic, Guinea-Bissau, Guinea-Equatorial, Guyana (British), Haiti, Honduras, Iceland, Islamic Republic of Iran, Iraq, Israel, Jamaica, Jersey, Jordan, Kazakhstan, Kenya, Kosovo, Kuwait, Kyrgyzstan, Lebanon, Lesotho, Liberia, Libya, Madagascar, Malawi, Maldives, Mali, Martinique, Mauritania, Mauritius, Mayotte, Republic of Moldova, Mongolia, Montenegro, Montserrat, Morocco, Mozambique, Namibia, Nepal, Nevis, Nicaragua, Niger, Nigeria, North Macedonia, Oman, Pakistan, Panama, Paraguay, Paraguay, Peru, Puerto Rico, Qatar, Reunion Island, Russian Federation, Rwanda, Sao Tome & Principe, Saudi Arabia, Senegal, Serbia, Seychelles, Sierra Leone, Somalia, Somaliland, South Africa, South Sudan, Sri Lanka, St. Barthelemy, St. Eustatius, St. Helena, St. Kitts, St. Lucia, St. Maarten, St. Vincent, Sudan, Suriname, Swaziland, Syria, Tajikistan, Tanzania, Togo, Trinidad and Tobago, Tunisia, Turkmenistan, Turks and Caicos Islands, Uganda, Ukraine, United Arab Emirates, Uruguay, Uzbekistan, Venezuela, Virgin Islands (British), Virgin Islands (US), Yemen, Zambia, Zimbabwe

Order Price..............Shipping Cost
¥10,999 and less................¥750
¥11,000 and charge
Some products are eligible for delivery directly to mailbox for a shipping fee of ¥380. (Nekopos, Click Post)
If the products you ordered are eligible, you will be able to select it from the shipping method selection screen at checkout.

Postalco cannot take responsibility for any shipping delays due to customs clearance, payment transaction delays, or any unforseen circumstances.
Import taxes, duties, and related customs fees may be charged when the parcel arrives at the destination country. The payment of these charges and taxes is the responsibility of recipient and will not be covered by Postalco. Duties & taxes are set by the customs authorities of the destination country. We estimate the value to be between 25-40% of the amount paid for the item(s) ordered. The shipper will contact you directly requesting payment upon your order's arrival through customs.
All shipments outside Japan include a commercial invoice to avoid delays in customs. We are unable to indicate a lower price for the value of your order listed on your commercial invoice as we must adhere to all international import/export rules and regulations.
Unclaimed packages: The shipper will leave a notice if nobody is available to sign for your package. The shipping agent will hold your package for a few days only. If you do not claim it, it will be returned to us, marked unclaimed. You will be required to pay for shipping twice to have your order sent a 2nd time. There may be some countries we cannot ship to due to courier restrictions.


AXIS No.212

Q. What is the difference between Free Arm Shirt 01 and Free Arm Shirt Straight Fit?

A. Free Arm Shirt 01 has a box silhouette with a relaxed fit. Straight Fit is a regular cut that's less boxy than 01. The table below shows the difference in size measurements for Free Arm Shirt 01 versus straight fit.

Q. What is the difference in the fabrics?

A. Please see the map below for details. Our collection offers a variety of fabrics suitable for year-round wear, ensuring comfort in any season.

Garment Dyed
Tightly woven cotton fabric gives this shirt its great body. Garment dyed for a more comfortable fit and to fade naturally with use. It also means they are pre-shrunk.

Indigo and Mud (Ai-Doro)
Indigo plants create an iconic blue. The iron rich mud then darkens and intensifies the blue until it is almost a midnight darkness. What at first looks like black, with a closer look, consists of subtle shades of black, blue, and navy. These variations are a sign of true hand dyed process.

Amami Mud Pack
“I dunked my hand in the mud pool, expecting a gritty feeling. It was creamy smooth. The craftsman said my skin will feel great the rest of the day. It did."

Original spiral sleeve
Ordinary shirt sleeves are essentially long tubes. When you move your arm, the typical sleeve may flex a bit but still pull at the seam, resulting in limited motion and the risk of ripping your shirt. Stretch fabrics can be used but natural cotton feels so much better.

Spiral shoulder
Angled pleats on back along with our original "spiral shoulder" construction for maximum movement.

This shirt is made in a Japanese workshop with over 40 years of experience.

Shell Buttons
Our buttons are completely unbleached and natural shell. Each button is hand shaped to create a unique matte texture.

・Variations in color are part of the hand dye process.
・Straight, relaxed fit.
・Full length sleeves with two button barrel cuffs for adjustability.
・This fabric is tightly woven for a unique look and soft touch.
・Woven in Japan.

Weather Cloth
100% cotton Japan made fabric. With repeated washings it will become one of the softest items in your closet. No fillers or interfacing used in this shirt. All thickness is created with luxurious tightly woven fibers and layered fabric. This is more difficult to make but results in a shirt that will age better. We noticed this is the way 1920s vintage workwear was made and what gave those classic pieces their reliability.

Ai-doro Light Cotton
With use this natural indigo and mud dyed fabric fades into beautiful shades depending on how it is used. Shown here after multiple washes.

Living Traditions
This 1300 year old technique gives a unique black color to textiles. Hand dyed by Kanai Kougei on Amami Oshima Island in the south of Japan. Using time-tested techniques they transform natural materials into beautiful objects.

Free Arm Wear logo wood block carving.

Learning from Japan
The craftspeople, suppliers, and small workshops found in Japan make things not to be found anywhere else. We are fortunate to work with family businesses that are so focused on their craft. Don’t put Postalco items on a shelf or in a drawer. Their beauty is revealed through daily use. They will help you feel good at home and be ready in a meeting.