As of this week, Baseballism Headquarters is moving into a larger warehouse space and will not process orders until July 18th. To accomodate for delayed shipping, we are offering free shipping on all orders through July 18th.
For the real speed demons
Diamond Pima Oversized Tee by Baseballism
Luxury meets grit. Built for the lifestyle of a ballplayer.
Engineered for off-field dominance, the Diamond Pima Oversized Tee delivers elite comfort with a street-ready silhouette. Cut from 200gsm premium pima cotton, this heavyweight tee brings a soft, spongy feel with the durability to keep pace with your grind.
200 GSM Pima Cotton – Extra-long staple fibers create a luxuriously soft yet rugged finish.
4-Way Stretch – Moves with you whether you’re training, traveling, or taking cuts in the cage.
Oversized Streetwear Fit – Designed for relaxed confidence; boxy, modern, and built for layering. Size down for a traditional fit!
This isn’t your average tee. It’s Baseballism’s answer to the intersection of performance and style—crafted for the players who live the game on and off the field.
Care: Machine wash cold water - Air Dry

Teen loves this set! He’s known as speedy on his team so this was perfect. Definitely size down in this style shirt, especially for tall/slim builds! Should have listened to that tip.
The fabric is soft and thick and feels amazing. The print and colors really pop. Took away 1 Star as shirt ran slightly smaller than the Size Chart indicated (not Oversized as stated).
