Built for grapplers. Worn everywhere
I Know Jiu-Jitsu — BJJ Statement Shirt
A statement BJJ shirt for the confident grappler — say it like you mean it.
I know jiu-jitsu.
The line every grappler wants to say mid-roll — a bold statement print for the ones who live on the mat. Wear it to class, to competitions, or everywhere after.
Print placement: Bold statement print on the front: “I know jiu-jitsu.”
Fabric and fit: Bella+Canvas 3001 classic unisex jersey tee, 100% Airlume combed and ring-spun cotton, lightweight 4.2 oz/yd² (142 g/m²), retail fit, crew neckline, ribbed knit collars, tapered shoulders, dual side seams, tear-away label, Fair Labor Association + Platinum WRAP certified. Fabric blends: Ash and Heather Prism colors - 99% cotton, 1% polyester; Heather and Solid Blend colors - 52% cotton, 48% polyester; Athletic Heather and Black Heather - 90% cotton, 10% polyester.
Size guide: Please check the size guide on this page before ordering. Every item is printed to order just for you.
Production and shipping: Every item is made to order — printed when you order it, not pulled off a shelf. Production: typically 2–7 business days. Shipping: choose your speed at checkout. Economy: 4–8 business days. Standard: 2–5 business days. Shipping is calculated and paid at checkout.
Returns: Because every item is printed to order just for you, we can't take returns for wrong size, wrong color, or change of mind — please check the size chart on the product page before you order. If your item arrives damaged or misprinted, email us within 30 days of delivery with a photo of the issue and we'll reprint it or refund you. No need to send the item back.
Contact: Questions: [email protected]
Note: Sleeve prints and neck labels are produced using DTF (Direct-to-Film) printing technology. This applies only to products fulfilled by the print providers OPT OnDemand and Shirt Monkey among the providers offering this item.
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.
Accurate shipping options will be available in checkout after entering your full address.
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.
See terms and conditions