TheStack Bat Speed Training System with Integrated Sensor

$399.00
TheStack Bat Speed Training System with Integrated Sensor
TheStack Bat Speed Training System with Integrated Sensor
TheStack Bat Speed Training System with Integrated Sensor
TheStack Bat Speed Training System with Integrated Sensor
TheStack Bat Speed Training System with Integrated Sensor
TheStack Bat Speed Training System with Integrated Sensor
TheStack Bat Speed Training System with Integrated Sensor
TheStack Bat Speed Training System with Integrated Sensor
TheStack Bat Speed Training System with Integrated Sensor
TheStack Bat Speed Training System with Integrated Sensor
TheStack Bat Speed Training System with Integrated Sensor
TheStack Bat Speed Training System with Integrated Sensor

TheStack Bat Speed Training System with Integrated Sensor

$399.00
  • Train for a faster swing. Follow personalized workouts designed to develop bat speed.
  • Measure your progress. The integrated sensor sends training speeds to the app; no separate radar is required.
  • Adjust the load. Five weights create 30 combinations for the prescribed training.
  • Get guided sessions. Full app access is included with no additional subscription fee.
  • Choose your fit. Pro and Youth options; compatible Apple device required. Non-impact swings only.
Size:
Quantity:
  • Ships within 2 business days
  • Request a return within 21 days
  • Manufacturer's warranty
  • Secure, encrypted checkout

TheStack Bat Speed Training System

Build bat speed with a plan you can measure.

Choose TheStack when you want to develop a faster swing and give yourself more potential to drive the ball. Adjustable weights, an integrated speed sensor and personalized app workouts turn that goal into a structured routine. You get prescribed training and visible progress, with the program adapting as you improve. Expect a training process that rewards consistency; speed gains and game results vary by player.

  • 30Weight combinations
  • 5Interchangeable weights

  • Know what to swing and when to rest

    The app assigns the load, repetitions and recovery, then adjusts future workouts using your performance. This gives your speed work a progression to follow instead of leaving you to guess the next workout.

  • See whether your speed work is progressing

    The integrated sensor sends training speeds to the app without a separate radar. Track your sessions and share your profile with a coach. Bat eSpeed and Distance Potential are estimates, not measured game results.

  • Change the training load with one bat

    Five interchangeable weights provide 30 load combinations. Paired with the app, they support prescribed overload and overspeed work in one system, with full training access included and no additional subscription fee.

Is TheStack right for your player?

Right for you if

  • You want a structured speed program with measurable feedback
  • You can train consistently and follow the prescribed recovery
  • You have a compatible Apple device and want app-guided training

Check before choosing

  • You need a bat for hitting balls; TheStack is for non-impact swings only
  • You only have an Android device; the app currently requires iOS/iPadOS 15.0 or later
  • You want guaranteed exit-velocity or distance gains; training metrics do not guarantee game outcomes

Specifications

Options
Pro or Youth; use TheStack Bat Fitting Tool to select your version
Included hardware
Training bat with integrated Stack Sensor, five milled weights and weight case/phone stand
Adjustable weight
30 added-weight combinations from 0–400 g; this is not the total bat weight
App access
Full TheStack Baseball training access included; no additional subscription fee
Compatibility
Compatible device running iOS/iPadOS 15.0 or later; Android not currently supported
Sensor power
Replaceable CR2032 battery; no charging required
Typical schedule
About 20 minutes per session, 2–3 sessions weekly; programs typically run 6–8 weeks. Follow your assigned program.
Intended use
Non-impact training swings only. Do not hit balls, the ground or a smash bag.
Sizing help
https://www.thestackbaseball.com/pages/stack-bat-fitting-tool

Make each speed session count

Let the assigned program guide your load, effort and recovery.

Start with the right setup

Use the manufacturer’s fitting tool to choose Pro or Youth. Enter your gamer bat information accurately so the app can personalize its estimates.

Follow the assigned session

Complete the app’s setup and follow its repetitions, weight changes and rest periods. Choose a clear space for non-impact swings.

Give recovery a place in the plan

Follow the scheduled training days instead of adding extra sessions. For young players, consider total practice and game workload with their coach.

Read the metrics correctly

Use Stack Speed to track training progress. Bat eSpeed predicts speed with your gamer bat, and Distance Potential models an ideal-contact result; neither measures an actual batted ball.

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The Tools to Dominate the Diamond

WHY Ultimate Baseball Supply?

We curate the best gear serious players need to increase bat speed, build consistency, and reach their ultimate potential.

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We're an authorized dealer for every brand we carry, so your gear is genuine and covered by the full manufacturer warranty.

Performance-Focused Gear

Equipment designed to improve bat speed, mechanics, and game-ready performance.

Curated by Baseball Minds

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Customer Reviews

Customer Reviews

Customer Reviews

Customer Reviews

Trusted by thousands of customers

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Leann K.

My 9-year old grandson had a grasp of what the spin griep achieved. He said that he "loved it", "would always use it", and that he threw the baseball faster.

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Alfred

It does exactly what I needed it to do. Thank you.

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Kathy O.

Very good customer service that backs its products.

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Jim L.

It was great. The product shipped quickly. I was also informed about the status and shipment. Thank you. I will be back.

Got a Question?

Need help with your order or have a question about one of our products? Please get in touch with our support team:

support@ultimatebaseballsupply.com

Do you offer warranties on your products?

All orders placed with Ultimate Baseball Supply come with the manufacturer's standard warranty. We are an authorized distributor of every brand we offer and product we carry on our website. 

To initiate a warranty claim for a product purchased at Ultimate Baseball Supply, please reach out to us directly at support@ultimatebaseballsupply.com for more information or visit our Warranty Page for more information.

 How long will it take to receive my order?

Most orders normally ship out within 1-2 business days. Please note during busy periods or peak holidays, we may experience delays in fulfillment time. If an item is on back-order, we will contact you as soon as it is on its way to you.

 What is the return policy?

All orders placed with Ultimate Baseball Supply are eligible for a return or exchange. Items must be received back at Ultimate Baseball Supply or Ultimate Baseball Supply's manufacturer locations within 30 days after your order arrives to be eligible for a full refund.

To allow for communication delays, please reach out to us within 21 days of your order arrival to initiate the return or exchange process. 

To get started with a Return or Refund request, or to learn more about our policy view our Return & Refunds Policy.

 How long will it take to receive my refund?

Refunds are processed within 7 business days from when we receive and restock the the returned item(s).

 Do you offer bulk shipping for teams?

Yes. We specialize in outfitting entire rosters and offer streamlined logistics for coaches and facility directors ordering in volume.