Why Water Balls for Boxing are a Bad Idea (and What to Use Instead)

October 01, 202510 min read

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As an Olympic bronze medalist and former undefeated professional boxer, I’ve spent countless hours training on a variety of punching bags. While the latest fitness craze of “water balls” or “aqua bags” has gained popularity in boxing gyms around the world, I’m not a big fan of these bags and I’m going to tell you why.

In this in-depth blog post, I’ll dive into the pros and cons of training with water balls, share the key advantages and disadvantages compared to a traditional heavy bag, and ultimately recommend the type of punching bag I believe is the best option for serious boxers looking to improve their skills and power.

The Allure of Water Balls

The Allure of Water Balls

I understand the appeal of water balls. They’re easy to set up, relatively inexpensive to ship, and they have a unique dynamic motion that can be fun to train with. Many boxers, especially those new to the sport, are drawn to the water ball’s ability to swing and move in unpredictable ways.

Additionally, water balls allow you to practice certain techniques that are difficult to execute on a traditional heavy bag. For example, you can work on your overhead punches, uppercuts, and inside fighting in ways that just aren’t possible on a stationary bag.

So what’s the problem? Why am I not a fan of these water-filled bags? Let me explain…

The Limitations of Water Balls

While water balls do have some advantages, there are several key drawbacks that make them a poor choice for serious boxers looking to improve their skills and power.

Lack of Resistance for Body Shots

Lack of Resistance for Body Shots

One of the biggest issues I have with water balls is the inability to effectively practice body shots. On a traditional heavy bag, you can unleash powerful hooks, crosses, and uppercuts to the midsection. This is an essential part of any well-rounded boxing arsenal.

However, with a water ball, the bag is simply too soft and forgiving to allow for meaningful body work. At best, you can try to whip in some angled hooks to the body, but you lose the ability to really dig in and work on your power punches to the torso.

Unpredictable Swing and Motion

Unpredictable Swing and Motion

While the dynamic motion of a water ball can be fun to play with, it also makes it challenging to develop consistent, accurate punching technique. The bag’s erratic swinging makes it difficult to time your shots properly and work on your form.

On a heavy bag, you can establish a rhythm and flow, practicing your footwork, head movement, and punch placement with precision. The water ball, on the other hand, forces you to constantly adjust and react to its unpredictable movements.

Potential for Hand Injuries

Potential for Hand Injuries

Perhaps the biggest drawback of water balls is the risk of hand injuries. Despite the perception that they are “softer” than a heavy bag, these water-filled bags can actually be quite hard and unforgiving on the knuckles.

I’ve personally experienced hand pain and even minor injuries from hitting water balls, especially when striking the upper portion of the bag. The lack of give and shock absorption can take a toll over time, potentially leading to nagging hand issues that can sideline your training.

Difficulty with Positioning and Movement

Difficulty with Positioning and Movement

Another challenge with water balls is their cumbersome size and weight. Compared to a traditional heavy bag, these water-filled bags are much smaller yet significantly heavier, making them awkward to reposition and move around the gym.

If you want to change the height or location of your water ball, it becomes a real chore. The bag is difficult to lift and transport, especially when it’s full of water. This can disrupt the flow of your training and make it harder to optimize your workout space.

The Advantages of a Traditional Heavy Bag

In my opinion, the benefits of training on a high-quality heavy bag far outweigh the appeal of water balls. Here are some of the key advantages of the classic punching bag:

Develop Powerful, Accurate Punches

The solid, consistent resistance of a heavy bag allows you to really work on generating maximum power in your punches. You can unleash full-force hooks, crosses, and uppercuts without worrying about the bag swinging wildly or causing hand pain.

This type of focused, high-intensity training is essential for building knockout power and improving your overall punching technique. The heavy bag provides the perfect medium for honing your skills and developing that coveted one-punch knockout power.

Practice Effective Body Shots

As I mentioned earlier, one of the biggest limitations of water balls is the inability to properly train body shots. On a heavy bag, you can let loose with blistering hooks, crosses, and uppercuts to the midsection, developing the muscle memory and technique required to be a truly well-rounded boxer.

These body shots are not only crucial for scoring points and wearing down opponents, but they also help build core strength, endurance, and the mental toughness to keep pushing forward even when fatigued.

Establish Rhythm and Technique

The consistent, predictable motion of a heavy bag allows you to settle into a rhythm and really focus on your form and technique. You can work on your footwork, head movement, and punch placement without having to constantly adjust to an unpredictable swing.

This type of technical training is invaluable for boxers at all levels, from beginners looking to build a solid foundation to seasoned pros fine-tuning their skills. The heavy bag provides the perfect canvas to paint your boxing masterpiece.

Reduced Risk of Hand Injuries

As I mentioned earlier, water balls can be surprisingly hard on the hands, potentially leading to nagging injuries. A high-quality heavy bag, on the other hand, is designed to provide the optimal balance of resistance and shock absorption, allowing you to train with maximum intensity without the same risk of hand problems.

This is especially important for boxers who put in long hours on the bag, as the cumulative stress on the hands can really take a toll over time. Protecting your most valuable tools – your hands – should be a top priority.

My Recommended Heavy Bag Setup

If you’re convinced that the heavy bag is the way to go (and I hope I’ve made a compelling case), the next step is to choose the right bag for your needs. In my experience, the ideal heavy bag setup has the following characteristics:

  • Large, Substantial Size: Look for a heavy bag that’s roughly the same size as your body. This allows you to work on a wide range of techniques, from long-range jabs to inside fighting.

  • Significant Weight: A heavy bag that weighs 100 pounds or more will provide the necessary resistance and stability for powerful, full-force punching. Lighter bags simply won’t give you the same training effect.

  • Soft, Forgiving Surface: The best heavy bags have a thick, shock-absorbing outer layer that protects your hands and allows you to train with maximum intensity. Avoid bags that feel overly rigid or unyielding.

One heavy bag that checks all of these boxes is the one you see me using in my 10 Heavy Bag Boxing Drills for Beginners to Professional video. This bag is the perfect size, weight, and texture for serious boxing training.

If you’re in the market for a new heavy bag, I’d highly recommend checking out that video and considering a similar setup for your gym or home training space. And don’t forget to use the TJVIP code to get 10% off Hayabusa gloves – another essential piece of equipment for any boxer.

Supplementing Your Heavy Bag Training

While the heavy bag should be the foundation of your boxing workouts, there are a few other training tools and techniques I recommend incorporating to take your skills to the next level:

Aqua Bag Drills for Specific Techniques

Despite my overall skepticism about water balls, I do acknowledge that they can be useful for practicing certain boxing techniques, like overhead punches and inside fighting. So while I wouldn’t recommend relying on them as your primary punching bag, you could consider using an aqua bag for targeted drills and skill work.

For example, you could use the 10 Heavy Bag Boxing Drills I outlined in my previous video, but substitute the water ball for the heavy bag on a few of the drills that focus on those specific techniques. This allows you to get the benefits of the water ball’s dynamic motion without sacrificing the overall quality of your training.

Supplemental Strength and Conditioning

In addition to your heavy bag work, it’s crucial to incorporate comprehensive strength and conditioning into your boxing training regimen. This could include exercises like:

  • Bodyweight exercises (push-ups, pull-ups, squats, etc.)

  • Resistance training with weights or resistance bands

  • Plyometric exercises for explosive power

  • Core-strengthening movements

  • Cardiovascular training for endurance

By building overall strength, power, and conditioning, you’ll be able to generate more force in your punches and maintain a higher output for longer periods of time in the ring. This type of cross-training is essential for taking your boxing skills to the next level.

Proper Nutrition and Supplementation

As an Olympic medalist and former pro boxer, I know firsthand the importance of proper nutrition and supplementation for supporting athletic performance and recovery. That’s why I’m proud to partner with Renue by Science and their high-quality NMN supplement.

NMN (Nicotinamide Mononucleotide) is a precursor to NAD+, a crucial coenzyme that plays a vital role in cellular energy production, DNA repair, and overall health. As we age, our NAD+ levels naturally decline, which can lead to decreased energy, slower recovery, and other age-related issues.

By supplementing with NMN from Renue by Science, I’m able to maintain optimal NAD+ levels, helping me stay sharp, energized, and focused during my intense boxing training. I highly recommend checking out their products and using the code “BOXING” to save 10% on your order.

Conclusion: Ditch the Water Balls, Embrace the Heavy Bag

In the end, while water balls may seem like a fun and trendy piece of boxing equipment, I firmly believe that a high-quality heavy bag is the superior choice for serious boxers looking to improve their skills and power.

The heavy bag’s consistent resistance, shock-absorbing surface, and predictable motion allow you to develop powerful, accurate punches, practice effective body shots, and establish a solid technical foundation. And with the right supplemental training and recovery strategies, you’ll be well on your way to reaching your full potential as a boxer.

So ditch the water balls, invest in a heavy bag setup that checks all the boxes, and get to work. Your hands (and your opponents) will thank you.

If you found this article helpful, be sure to check out my other boxing-related content, including:

And don’t forget to connect with me on Instagram, subscribe to my YouTube channel, and check out my boxing gear and equipment. Let’s work together to take your boxing skills to new heights!

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