Team Worm – ZEUZ Worm for CrossFit & Strength Training

Want to take your team training to the next level? The Team Worm is specially designed for intense CrossFit sessions, functional strength training, and teamwork under pressure. This professional training tool is perfect for sports teams and athletes working on strength, endurance, and cooperation. Available in different sizes for 2, 3, or 4 people.

Benefits

Trains strength, coordination, and teamwork at the same time, thanks to the Worm's team-oriented design.
Remains durable under intense loads, thanks to the hard-wearing Cordura material.
Easily adjust the weight to suit your training goal with the modular system and separate filler bags.
Train safely, even during heavy repetitions, thanks to the double closure (YKK zipper and hook-and-loop fastener) on the bags.
Suitable for indoor and outdoor use, as the material is resistant to impact and weather conditions.
Suitable for any team size thanks to the different available sizes for 2, 3, or 4 people.

Product Details

Durable Material and Secure Closure

The Worm consists of an outer cover and multiple filler bags, both made from extra-strong Cordura material: abrasion-resistant, tear-resistant, and suitable for intensive indoor and outdoor use. The filler bags feature a double closure system (YKK zipper and hook-and-loop fastener), so you can train with confidence, even during heavy repetitions.

Modular System for Every Training Goal

The modular design allows you to adjust the load per segment depending on your training goal and the number of team members. Fill the bags yourself with a combination of rubber granulate and sand: granulate provides volume, while sand adds weight. This keeps the Worm versatile and easy to use, from light training to heavy loads.

Please note: the sandbags must be filled yourself.

Use & Applications

Worm Filling Material

Fill the Worm properly by always using both sand and rubber granulate. Choose crumbly, bone-dry sand with a grain that is not too fine. Concrete sand, masonry sand, or crusher sand work best; the coarse grains do not work their way through the stitching. Artificial grass infill sand is the cleanest option, but it is more expensive. Play sand can also be used if it is sifted and completely dry. Avoid damp sand: it clumps, distributes unevenly, and will eventually start to smell. If you are unsure whether the sand is dry enough, spread it out on a tarp in the sun for a day. Use SBR rubber granulate with a grain size of 2 to 4 mm. Finer granulate creates dust and works its way into the seams, while coarser granulate fills less compactly.

Filling the Worm

The Worm only works if every bag is full and at the correct weight. Sand weighs approximately 1.5 kg per litre, while rubber granulate weighs approximately 0.5 kg per litre. If you fill a bag with sand only, it will not be full enough at the desired weight, and the sand will move freely from side to side. This causes the Worm to sag in the middle and lose its shape. If you fill a bag with granulate only, it will remain tight and full, but will not be heavy enough to train with.

Use granulate as the base so that each bag is filled tightly into the corners, then add sand to build up the weight. This way, the Worm retains its shape, rests evenly on your shoulder, and behaves the same way during every rep. Rule of thumb: replacing 1 litre of granulate with 1 litre of sand adds approximately 1 kg without changing the volume. This allows you to set each weight precisely. Fill the Worm in 5 steps:

Weigh each bag separately. Place a bucket on a scale, tare it, and work in portions—never by guesswork.
Start with rubber granulate until the bag is approximately two-thirds full.
Add sand, close the bag, and shake it thoroughly so that the sand settles between the granules.
Top it up with granulate until the bag is tightly full. Close the zipper, secure the hook-and-loop fastener over it, and double-check the closure.
Drop the bag flat onto the floor a few times to settle the filling. Add another handful of granulate if necessary, and only then place the bag in the outer cover.

Filling Guide per Bag

Bag	Target Weight	Sand	Rubber Granulate
Inner bag, light	± 26 kg	± 9 kg	± 17 kg
Inner bag, heavy	± 36 kg	± 24 kg	± 12 kg
Connector bag	± 10 kg	± 7 kg	± 3 kg

Please note: the distribution is indicative. Sand and rubber granulate vary by supplier in grain size, moisture content, and density, so the exact ratio may differ in practice. Use the table as a guideline and work with a scale.

The rule that always applies: fill the bag until it is completely full and tight. If space remains, add granulate. If the bag is full but too light, remove a scoop of granulate and replace it with the same amount of sand. If it is too heavy, do the opposite.

Filling Table per Variant

Three starting points. All weights are indicative; your exact total depends on the sand and granulate you use.

Setup 1: Training. All inner bags are light. Suitable for mixed teams, boot camps, schools, and a first introduction to the Worm.

Variant	Configuration	Total (indicative)	Sand	Granulate
2 people	2 x 26 kg + 1 x 10 kg	± 62 kg	± 25 kg	± 37 kg
3 people	3 x 26 kg + 2 x 10 kg	± 98 kg	± 41 kg	± 57 kg
4 people	4 x 26 kg + 3 x 10 kg	± 134 kg	± 57 kg	± 77 kg

Setup 2: Competition. Heavy bags in the middle and light bags at the ends. This is the classic competition setup. The weight is intentionally not distributed evenly, requiring the team to constantly adjust. This setup trains harder than the total weight might suggest.

Variant	Configuration	Total (indicative)	Sand	Granulate
2 people	1 x 36 + 1 x 26 + 1 x 10 kg	± 72 kg	± 40 kg	± 32 kg
3 people	2 x 36 + 1 x 26 + 2 x 10 kg	± 118 kg	± 71 kg	± 47 kg
4 people	2 x 36 + 2 x 26 + 3 x 10 kg	± 154 kg	± 87 kg	± 67 kg

Setup 3: Maximum. All inner bags at full weight. For experienced teams and strongman training.

Variant	Configuration	Total (indicative)	Sand	Granulate
2 people	2 x 36 kg + 1 x 10 kg	± 82 kg	± 55 kg	± 27 kg
3 people	3 x 36 kg + 2 x 10 kg	± 128 kg	± 86 kg	± 42 kg
4 people	4 x 36 kg + 3 x 10 kg	± 174 kg	± 117 kg	± 57 kg

Do not exceed the specified maximum filling weights per bag. Extra weight does not increase the training value of the Worm; it only causes it to wear out faster.

Use the Worm for:

Shoulder-to-Overhead
Clean & Press (per partner section)
Team Lunges & Squats
Push-ups & Burpees over the Worm
Deadlifts
Walkovers & Holds

Suitable for:

CrossFit WODs
HYROX team rounds
Strength circuits
Military-style training
Boot camps and sports teams

Order Today and Train as a Team

The ZEUZ Worm is the ultimate tool for functional team training. Train as one unit and build strength, balance, and discipline.

39 results for "weight vest"