XX Development "SURE MFG" 7.5oz Long Sleeve T-Shirt Off White
With its SURE MFG line, XX Development revisits the classic 1950s American tubular T-shirt through the careful study of original vintage garments. Behind its understated appearance lies meticulous Japanese craftsmanship, combining a substantial 7.5oz cotton jersey, seamless tubular construction and thoughtful finishing details designed to stand the test of time. Offered here in an Off White colourway, it is a timeless wardrobe essential that pairs effortlessly with almost anything.
Features
- 100% cotton
- 7.5oz Japanese cotton jersey
- BD Yarns cotton
- One Wash
- Tubular construction with no side seams
- Reinforced collar
- Single chest pocket
- Long sleeves with ribbed cuffs
- Regular fit
- Made in Japan
Description
Founded by Taichi and Kentaro, XX Development is driven by a passion for faithfully recreating the finest examples of vintage American clothing. The SURE MFG collection embodies this philosophy, with each garment developed through the meticulous examination of original vintage T-shirts, down to the smallest construction details. Even the removable sticker attached to every piece pays tribute to the packaging of classic American-made garments.
The T-shirt features a traditional tubular construction, meaning it is knitted without side seams. Once standard on vintage American T-shirts but now increasingly rare, this method provides superior comfort while remaining true to the garments that inspired it. It is complemented by a reinforced ribbed collar and ribbed cuffs, both designed to retain their shape through years of regular wear and repeated washing.
The fabric plays an equally important role in defining the garment's character. The 7.5oz cotton jersey is knitted using yarns supplied by BD Yarns, a renowned Indian spinner recognised for producing durable cotton with a slightly dry hand and outstanding character. This mid-weight fabric offers an excellent balance of structure, comfort and longevity, allowing the T-shirt to hold its shape without feeling overly heavy.
Finished with a One Wash treatment, the fabric feels soft from the very first wear while virtually eliminating further shrinkage. Rather than relying on special dyeing techniques, this Off White version highlights the purity of the fabric and the quality of its construction. A timeless essential that works just as well on its own as layered under a shirt, jacket or sweatshirt.
Fit & Sizing
- Regular fit inspired by vintage American T-shirts.
- Tubular construction for a natural drape and enhanced comfort.
- Long sleeves with ribbed cuffs.
- 7.5oz fabric offering excellent structure.
- One Washed to prevent further shrinkage.
- This style runs slightly small.
- We recommend choosing your usual size for a fitted look, or sizing up for a more relaxed fit.
Why we selected it
While the pigment-dyed versions stand out for the way they develop character over time, this Off White edition won us over with its simplicity. It showcases the quality of the cotton jersey, the precision of the construction and XX Development's authentic tubular knitting. A clean, durable and exceptionally versatile T-shirt destined to become a true wardrobe staple.
This style runs slightly small. You can choose your usual size for a fitted look, or size up for a more comfortable fit.
Please note that the measurements below are provided as a guide and may vary slightly from one size or style to another.
In the photos, Maxime is 183 cm tall, weighs 75 kg, and wears a size L.
If you're unsure about sizing, feel free to contact us via Instagram or by email at information@flaneurs.net.

| Size | S | M | L | XL | XXL |
| A / Shoulders | 43 | 46 | 48 | 51 | 53 |
| B / Chest | 48 | 51 | 54 | 58 | 62 |
| C / Sleeve Length | 60 | 62 | 63 | 64 | 67 |
| D / Back Length | 65 | 67 | 68 | 69 | 72 |
You can find all information regarding shipping and returns in our dedicated section: "Shipping & Returns".
For returns, you have a period of 15 days from the date of receipt of your order to send back the item(s) that do not suit you, at your own expense.
Please follow the instructions provided on the return form, which you can download by clicking here.