IMPROVEMENT 「改善」KAIZEN
IMPROVEMENT 「改善」KAIZEN
Regular price
$34.49
Regular price
$46.49
$34.49
Sale price
Unit price
/
per
Shipping calculated at check out.
- Free 14 day return policy
- 100% Cotton
- Free Shipping available
Couldn't load pickup availability
Material
Material
EMaterial & Fit
- Fabric: 100% Combed Ring-Spun Cotton (4.3 oz / 145 GSM)
- Feel: Ultra-soft, lightweight, and built for all-day wear
- Fit: Modern, slightly fitted cut — flattering on all builds
- Construction: Shoulder-to-shoulder taping and side seams for lasting shape
Finish: Pre-laundered to reduce shrinkage
This product is made especially for you as soon as you place an order, which is why it takes us a bit longer to deliver it to you. Making products on demand instead of in bulk helps reduce overproduction, so thank you for making thoughtful purchasing decisions!
Care Instructions
Care Instructions
• Machine wash cold (inside-out) with like colors
• Use mild detergent
• Do not bleach
• Tumble dry low or hang dry for best results
• If needed, cool iron on reverse side (do not iron decoration)
• Do not dry clean
IMPROVEMENT (改善) is rooted in Kaizen — the Japanese philosophy of continuous progress.
This design honors the ones who choose growth over perfection, discipline over shortcuts, and daily effort over excuses. Small steps. Big results. Consistent evolution.
Wear it as a reminder: better is built, not wished for.
Highlights:
Premium black cotton blend for all-day comfort
Vertical SAIKŌVERSE logo back print + branded sleeves
Unisex fit – built for everyone motivated in the SAIKŌVERSE
Unleash your potential. Multiply your grind. Join the movement.


Size Chart
| inches | S | M | L | XL | 2XL |
| Length | 28" | 29" | 30" | 31" | 32" |
| Width | 18" | 20" | 22" | 24" | 26" |
| Chest | 34-37" | 38-41" | 42-45" | 46-49" | 50-53" |
| cm | |||||
| Length | 71.1 | 73.7 | 76.2 | 78.7 | 81.3 |
| Width | 45.7 | 50.8 | 55.9 | 61 | 66 |
| Chest | 86.4-94 | 96.5-104.1 | 106.7-114.3 | 116.8-124.5 | 127-134.6 |
Testimonials
★★★★★
5
I absolutely love everything about this shirt. Delivery was on time, quality is everything I expected and the print is fantastic. Everything about their clothing line screams my personality and I’m over ecstatic to be making more orders!
-JOHN MAVERICK
★★★★★
5
Very nice...5 Star, great purchase! Beautiful! Fits well!
-EFRYN ORTEGA
★★★★★
5
This shirt from kanjidesigns is great. I am totally digging the style and all of the color options. The materials are super comfortable, and did I mention the great colors 👏👏?! 👍... I will definitely be looking to buy more. Great company and buying experience.
-ANTUQN
★★★★★
5
Wonderful shirt! Wonderful seller and excellent communication. Will buy from again. 🙂
-MAIKO ALEXANDER
★★★★★
4
Shirt quality is amazing! Definitely will be ordering more clothes here!
-CASEY LANE
Similar Items of Interests
IMPROVEMENT 「改善」KAIZEN
Regular price
$34.49
Regular price
$46.49
$34.49
Sale price
Unit price
/
per
IMPROVEMENT 「改善」KAIZEN
Regular price
$34.49
Regular price
$46.49
$34.49
Sale price
Unit price
/
per
Model
N/A
Color
Weight
N/A
Year
N/A
Dimensions
N/A
Materials
N/A
Features
N/A