Water bag designed for ultimate instability - Up to 15/25 kg of water capacity

• Challenges both the trunk muscles and postural control for improved core strength, spinal mobility, joint stability, coordination, balance, and proprioception
• Double handle position for greater exercise versatility
• Weight markers make it easy to add or remove water
• Hybrid water/air valve prevents both water and air from escaping
• Step pump and special adapter to fill up any void with air

ALL YOU NEED IS WATER.

Ditch sandbags and cumbersome weights. Fitness is not one-size-fits-all. We know you love options, and TRNR Hydro Bags can be filled with as much or as little water as you want. 

With a choice between a 15 kg and 25 kg max. capacity, you can be sure to find a match for your fitness level. Using water dynamics to make every workout count, you’ll reap many benefits, from functional strength and stability to endurance. As you attempt to lift your Hydro Bag while remaining stable, the shift in water will test your core strength and explosive power like never before. 

Trying to stay in control of the constantly moving water will also require proper form and foster body awareness through real-time feedback. 

Plus, TRNR Hydro bags are as easy to transport and prepare for training as they are durable. Whether you exercise at the gym or prefer outdoor settings, these Hydro Bags will add something new and exciting to your workout arsenal.