Lesson Tension T-Shirt & Long Sleeve
The signature classic is back! Recently voted by Systema practitioners as the favourite shirt of the passed 10 years.
This shirt features a bold vertical warrior design paired with “Less Tension More Power” wording printed along the side.
Made from ultra-soft, high-quality cotton, this is the ideal shirt for both training and casual wear. Simple enough to wear anywhere, with a design that still stands out.
Available in black and navy for both short sleeve and long sleeve options. A great opportunity to have in both styles.
Features:
- 6.8-oz, 100% combed and ring-spun cotton
- Ultra soft 30 single jersey
- Taped neck and shoulders for comfort and durability
- Tear away label for private branding
- Double needle cover stitch at sleeve and bottom hem
- 1×1 rib knit collar
- Side seamed
- Classic fit
Washing instructions: for better preservation, we recommend machine washing inside out in cold water and air dry.
Take on less tension, gear up for more power! Enjoy these shirts.

Classic Training Knife 

















Matt Conner –
I notice that the quality of the new t-shirts is improved. There was nothing wrong with the old ones which were among my favorites. But the new ones are softer and more comfortable, and I like the enlarged logo of the warrior on the front.
Valentin from Germany –
Systema clothing is professionally subtle. Not flashy, but strong without being loud, with dignity of design and presentation.
Denis CT –
The T-shirt has a very nice and comfortable feel. I think the material is softer but it’s still strong quality. I washed my shirts several times and the painted logo still keeps the colors.
The enlarged Systema logo got recognized from far away now.
Nice improvement.
lanounou2526 –
Très beau t-shirt, bonne qualité, il manque le logo sur la Manche dommage.
JD Hixson, Master of Music, Doctor of Musical Arts, The Juilliard School –
As a performing artist, runner and coach of both, I am profoundly aware of the relationship of mind and body – when it comes to fine tuning this integration, Systema Breathwork is invaluable in the way it teaches us through direct experience that less tension is truly more power!
Donya Vakili –
Great material and the fit is amazing, the design is very nice. I got alot of compliments!