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420 Down the Line Tee
The 420 Down the Line Tee is for the ones who send it — all the way. 420 marks the kind of distance that clears the fence, no doubt about it. A straight shot down the line, a clean swing, a guaranteed home run.
This tee captures that moment: lighting it up, confidence locked in, and knowing it’s gone the second it connects.
- Ultra soft fabric
- 60% cotton / 40% polyester
- Custom relaxed fit - runs true to size
- Moisture wicking properties
- Authentic Momentum merchandise from momentumbaseball.shop
Sizes Available: Youth S-XL, Adult S-2XL
*Please allow for 1-3 business days for order processing prior to shipping*
The 4APP Plyo Ball System is a 7-piece velocity training set engineered for elite pitchers and competitive arm development. Featuring a gapless overload-to-underload weight spectrum, a humidity-resistant engineered shell, and a revolutionary half-seam dual-feel design, this system provides unmatched biomechanical grip and authentic pitch feel across all training environments.
- Humidity-Resistant Grip: Features a proprietary composite shell texture that maintains a clean, consistent hold in sweat and high heat, eliminating dangerous over-gripping.
- Dual Feel Half-Seam Architecture: Engineered with one side featuring realistic raised seams for pitch shapes, and a completely smooth side for constraint-based mechanical training.
- Cohesive Weight Spectrum: A complete 7-piece progression covering 3.5 oz up to 4 lbs, completely eliminating weight gaps for smooth biomechanical scaling.
- Optimized Rebound Control: Dialed-in wall thickness guarantees durable, controlled rebound profiles off hard facility surfaces to prevent unpredictable ricochets.
Lock in your grip. Level up your game.
The 4APP Square Rosin Bag is made for pitchers who want that solid grip without overthinking it. Whether you’re getting your work in on a bullpen day, chasing velocity, or just need something that actually works, this bag’s got you. Built to be simple, durable, and effective - nothing fancy, just what you need.
Key Features:
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10oz square-style rosin bag
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Dark rosin blend from South Georgia pine
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Absorbs sweat fast and keeps your hand dry
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Heavy-duty polyester shell built to last
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Same stuff we use in our own training
From high school fields to pro bullpens, this bag shows up every day.
Please allow 1 to 3 business days for order processing before shipping.
9 Hole Hitter Tee
For hitters who know how to find every gap, the 9 Hole Hitter Tee celebrates skill, precision, and hustle at the plate. Whether you’re in the cage, on the field, or just showing off your love for the game, this tee lets everyone know you’ve got the bat control to make plays everywhere.
*Ships in 2-4 business days*
*Please allow for 1-3 business days for order processing prior to shipping*
9 Hole Hitter Vintage Tee
Classic style meets hitting precision. The 9 Hole Hitter Vintage Tee celebrates players who know how to find every gap, now with a timeless, retro-inspired look. Perfect for the field, the cage, or casual wear, this tee blends baseball skill with vintage vibes.
*Ships in 2-4 business days*
*Please allow for 1-3 business days for order processing prior to shipping*
America’s Catcher Tee
Rep your favorite creator with the official America’s Catcher Tee, designed with Austin’s signature energy, personality, and love for the game. Whether you’re behind the plate, in the stands, or just a fan of elite baseball content, this tee is built to deliver comfort, style, and catcher-level toughness.
*Ships in 2-4 business days*
- Ultra soft fabric
- 60% cotton / 40% polyester
- Custom relaxed fit - runs true to size
- Moisture wicking properties
- Authentic Momentum merchandise from momentumbaseball.shop
*Please allow for 1-3 business days for order processing prior to shipping*
Celebrate the heart of the game with the America's Pastime Tee. Designed by Momentum, this tee brings together players, fans, and families to experience the lighter, more creative side of baseball. Whether you're at the game or off enjoying a casual day, this shirt captures the spirit of baseball in its most inclusive, community-driven form. Made for comfort and style, it’s the perfect way to connect with others and share in the love of the game, one pitch at a time.
- Ultra soft fabric
- 60% cotton / 40% polyester
- Custom relaxed fit - runs true to size
- Moisture wicking properties
-
Authentic Momentum merchandise from momentumbaseball.shop
Size Chart: See link above
*Please allow for 1-3 business days for order processing prior to shipping*
Bad Day to be a Baseball Tee
Made for the players who love making solid contact, the Bad Day to Be a Baseball Tee celebrates that crisp barrel sound and the feeling of a well-hit ball. Whether you’re in the cage, at practice, or just showing your love for the game, this tee brings a lighthearted nod to hitters who know how to square it up.
*Ships in 2-4 business days*
- Ultra soft fabric
- 60% cotton / 40% polyester
- Custom relaxed fit - runs true to size
- Moisture wicking properties
- Authentic Momentum merchandise from momentumbaseball.shop
*Please allow for 1-3 business days for order processing prior to shipping*
Momentum Baseball Dad Tee
The Baseball Dad Tee is for anyone who shows up with cooler in hand, knows the lineup by heart, and brings big-game energy every time. Whether you're a dad, play the part, or just rock the title with pride—this tee’s for you.
It’s perfect for long days at the ballpark, post-game hangouts, or anywhere your baseball life takes you. Featuring bold “Baseball Dad” lettering in Momentum’s signature style, it’s a salute to the MVPs off the field.
- Ultra soft fabric
- 60% cotton / 40% polyester
- Custom relaxed fit - runs true to size
- Moisture wicking properties
- Authentic Momentum merchandise from momentumbaseball.shop
*Please allow for 1-3 business days for order processing prior to shipping*
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The game rewards skill, discipline, and competitive fire. We exist for players who want more than participation.
