THE BUSINESS-T, A refined T-shirt for the modern professional, perfect under a jacket
A new essential T-shirt designed for today’s businessman, offering a clean, polished look whether worn on its own or as an inner layer under a jacket. Made from our signature PREMIUM CIRCULAR fabric, also used in our stretch shirts, this business-ready T-shirt combines quality and functionality, setting it apart from ordinary casual tees.
Cotton 47%, Polyester/Polyethylene 53%
Made in Japan
Material
The outer surface features 80-count SUPIMA cotton, known for its smooth texture and elegant sheen, while the inner side uses a composite fiber (polyester + polyethylene) for comfort and performance.
Special fibers prevent light from passing through, achieving a “white yet non-see-through” effect.
Polyurethane yarn is knitted into the collar, providing stretch and allowing it to flex comfortably with neck movement.
Functionality
Maintains a smooth, dry feel even when sweating—ideal for business settings.
Excellent recovery (kickback), helping the fabric retain its shape and resist deformation.
Offers UV protection to shield your skin from strong summer sunlight.
Opaque enough to be worn on its own with confidence.
Design
The neckline features a slightly wider rib. This adds subtle volume and structure around the neck, giving a simple T-shirt a refined accent.
The collar is designed slightly higher to prevent direct contact between your skin and the jacket, helping reduce wear on the jacket.
Ideal for business casual outfits.
We’re happy to offer a refund for any items eligible under our return policy within 14 days of receiving your order. For full details →
We use a dynamic pricing system for shipping. The chart shows estimated shipping fees for a 3kg parcel. If your order reaches the free shipping threshold, shipping is free (customs duties may still apply). Otherwise, the fee will fall within the estimated range. Final charges at checkout are the most accurate, as they depend on the receiver's location, currency rate and the actual weight of the parcel.
Shipping Area
Shipping Price & Time
Customs Duties & Taxes
Asia, United States
Estimated USD 0-25 3-4 business days
Estimated 0%-38%
Canada, Mexico, Central America, Middle East, Oceania
Estimated USD 0-25 5-6 business days
Estimated 6%-18%
Europe, South America, Africa
Estimated USD 0-25 EU: 4-5 business days Others: 6-7 business days
Estimated 14%-33%
Free Shipping Thresholds for Main Countries>>
*Please note:
We dispatch orders within 1-5 business days via DHL. Shipping to Russia, Ukraine, Belarus, Iran, North Korea, and Israel are temporarily suspended. Shipping to Bahrain, Jordan, Kuwait, Qatar, Saudi Arabia, Oman, and the United Arab Emirates is temporarily subject to an additional USD 15 risk surcharge per shipment.
We sometimes separate orders to cut the cost and time of shipping. Please do not worry if you receive two tracking numbers.
There may be a chance our shipping service does not ship to your country. Please contact us should you have questions.
There may be a chance of delay of your delivery due to custom inspection.
This jacket embodies everything that epitomises Ivy League styling, the cut the choice of colour and the quality of workmanship are all exceptional, and so too is the fit. I am so pleased that I discovered Kamakura!
The product received is spot on to the description. The material and the color are excellent. On sizing a small is a snug fit for me. If you want a more relaxed fit or plan to wear an undershirt get a medium.
The boring bit: Delivery from Japan was fast and seamless.
About the shirt:
I've been wearing OCBDs for over a decade at this point from various makers. I now regard this as the benchmark because it's a quantum leap above the rest. The cloth is satisfyingly heavy and yet beautifully soft. The roll on the collar is delightful and the cut of the shirt itself is roomy without being baggy allowing you to move without hinderance. The end result of this is a shirt that is comfortable enough for a lazy Saturday and yet smart enough for the office.