DNA of a Black Belt T-Shirt — Martial Arts Karate Jiu-Jitsu Tee
From white belt to black, every twist in this helix tells a story. Our DNA of a Black Belt Tee celebrates the values that shape martial artists—character, respect, perseverance, discipline, mentorship, and mastery. Each belt is woven into a double helix, symbolizing how these traits become part of who you are. Printed on ultra-soft cotton with bold contrast graphics, this shirt is perfect for young warriors, dojo kids, and anyone proud of their martial arts journey. Whether you're just starting out or rocking that black belt, this tee reminds you: greatness is in your DNA.
This lightweight jersey tee carries quiet confidence. A bold, centered graphic reads “DNA of a Black Belt” above a stylized double-helix formed from colored martial-arts belts — a design that nods to decades of training, discipline, and earned rank. The soft, breathable Airlume cotton feels gentle against the skin during warm practice days or layered under a gi for off-mat wear. Clean crew neck lines and a retail fit keep the silhouette neat whether you’re heading to class, the dojo social, or running errands. It’s a wearable salute to grit and progress that feels familiar from the first wear.
Product features
- 100% Airlume combed and ring-spun cotton (lightweight 4.2 oz/yd²) for breathable, comfortable wear
- Side seams and shoulder tape preserve shape and prevent stretching
- Ribbed knit collar with seam and tear-away label for comfort and durability
- Sleeve and neck label printing use crisp DTF/DTG methods for vibrant, detailed graphics
- REACH certified; sourced from Honduras; ethical manufacturing (Bella+Canvas supply chain certifications)
Care instructions
- Machine wash: cold (max 30C or 90F)
- Non-chlorine: bleach as needed
- Tumble dry: low heat
- Iron, steam or dry: medium heat
- Do not dryclean
| XS | S | M | L | XL | 2XL | 3XL | 4XL | 5XL | |
|---|---|---|---|---|---|---|---|---|---|
| Width, in | 16.50 | 18.00 | 20.00 | 22.00 | 24.00 | 26.00 | 28.00 | 30.00 | 32.00 |
| Length, in | 27.00 | 28.00 | 29.00 | 30.00 | 31.00 | 32.00 | 33.00 | 34.00 | 35.00 |
| Sleeve length, in | 8.60 | 8.90 | 9.20 | 9.50 | 9.70 | 10.00 | 10.40 | 10.80 | 11.20 |
| Size tolerance, in | 1.50 | 1.50 | 1.50 | 1.50 | 1.50 | 1.50 | 1.50 | 1.50 | 1.50 |
With side seams
Located along the sides, they help hold the garment's shape longer and give it structural support
Ribbed knit collar with seam
Ribbed knit makes the collar highly elastic and helps retain its shape
Shoulder tape
Twill tape covers the shoulder seams to stabilize the back of the garment and prevent stretching
Sleeve Printing Techniques
Most providers fulfill their sleeve prints using the Direct-to-Film (DTF) method, ensuring crisp, detailed designs. TextilDruck and Fulfill Engine use Direct-to-Garment (DTG) printing for their sleeves, providing vibrant colors and a smooth finish
Neck Label Printing Techniques
Most providers print their labels using Direct-to-Film (DTF) printing, ensuring crisp, detailed designs. Meanwhile, TextilDruck and Stoked on Printing use Direct-to-Garment (DTG) printing for their labels, providing vibrant colors and a smooth finish
Age restrictions
For adults
Other compliance information
REACH Certified
Country of origin
Blank product sourced from Honduras
Machine wash: cold (max 30C or 90F); Non-chlorine: bleach as needed; Tumble dry: low heat; Iron, steam or dry: medium heat; Do not dryclean.
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Any goods purchased can only be returned in accordance with the Terms and Conditions and Returns Policy.
We want to make sure that you are satisfied with your order and we are committed to making things right in case of any issues. We will provide a solution in cases of any defects if you contact us within 30 days of receiving your order.
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