Wonder Looper Double Heavyweight Crewneck T-Shirt Charcoal
The Wonder Looper Double Heavyweight Tee is crafted in Japan from an extraordinary 409 GSM jersey, nearly twice the thickness of standard heavyweight tees. Featuring a unique slub texture and athletic modern fit, it combines rugged density with refined style. Built with meticulous craftsmanship, this is a t-shirt made to stand out and endure.
| SIZE | XS | S | M | L | XL | XXL |
| Chest | 90 | 99 | 105 | 109 | 116 | 122 |
| Shoulders | 41 | 44 | 46.5 | 47 | 50 | 53 |
| Waist | 45 | 48.5 | 51.5 | 54 | 58 | 60.5 |
| Opening | 45.5 | 49 | 52 | 54.7 | 59 | 62.5 |
| Lenght | 64 | 67 | 70.5 | 72 | 74.5 | 77.5 |
| Sleeve | 19 | 19.7 | 21 | 21.5 | 22.7 | 24.2 |
The Double Heavyweight Tee from Wonder Looper is a true benchmark in premium t-shirts. Crafted entirely in Japan, it features an extraordinary 409 GSM (12.1 oz/yd²) jersey – making it one of the heaviest t-shirt fabrics ever made.
At nearly twice the weight and thickness of a standard heavyweight tee, this shirt delivers unmatched density, structure, and presence. Woven on vintage circular knitting machines, the fabric carries a unique slub texture, giving it a subtle irregular character and rich visual depth.
Designed with a modern athletic fit, it offers a clean silhouette that complements the body without feeling restrictive. A ribbed binder collar ensures durability and comfort, while the flat side seam construction, sewn on Union Special machines, recalls the refined finishing of vintage Japanese sweatshirts.
Every detail of this tee reflects Wonder Looper’s uncompromising craftsmanship and dedication to quality — resulting in a garment built to stand out and built to last.
Fit Notes: Although Wonder Looper is a Japanese brand, the sizing runs closer to Western standards. If you typically wear a size M in American t-shirts, you’ll find the same size works well here. For the most accurate fit, we always recommend checking our detailed size chart before ordering.
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Spain
FREE SHIPPING on orders over 100 EUR.
6 EUR shipping cost on orders under the value mentioned above.
European Union & The UK
FREE SHIPPING on orders over 150 EUR
14 EUR shipping cost on orders under the value mentioned above.
Rest of the World
FREE SHIPPING on orders over 250 EUR.
25 EUR shipping cost on orders under the value mentioned above.
Returns
If for some reason you are not happy with your purchase you can return it to us within 14 days for a free size exchange or refund.
For more info please visit our returns & exchange page.
Please note that items in the SALE category are considered FINAL SALE, with no returns or exchanges accepted.
Reviews
| SIZE | XS | S | M | L | XL | XXL |
| Chest | 90 | 99 | 105 | 109 | 116 | 122 |
| Shoulders | 41 | 44 | 46.5 | 47 | 50 | 53 |
| Waist | 45 | 48.5 | 51.5 | 54 | 58 | 60.5 |
| Opening | 45.5 | 49 | 52 | 54.7 | 59 | 62.5 |
| Lenght | 64 | 67 | 70.5 | 72 | 74.5 | 77.5 |
| Sleeve | 19 | 19.7 | 21 | 21.5 | 22.7 | 24.2 |