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Everything you love about an organic infill...without the hassle. A natural product that offers low maintenance.


Low Maintenance
Unlike other organic infills, Safeshell stays in place, doesn't breakdown and doesn't change in the hot or wet climates. The round shape of each grain helps the product resist compaction. It doesn’t float and plays the same wet or dry. You get all the benefits of an organic infill without all the added maintenance.
Naturally Durable
The most durable natural infill, Safeshell is made from one of the hardest nut shells on the planet so you won't have to worry about this product breaking down. It doesn't float which means there will be limited migration of the product and it will stay in place. With the 8 year warranty and limited top-off required, you'll be able to always depend on Safeshell.
Cooler Temperatures
Safeshell excels at evaporative cooling - the key to a cooler playing surface. Safeshell absorbs water with minimal expansion and then releases it slowly over time to help keep surfaces from heating up too quickly. No water? That’s okay, even dry, Safeshell plays cooler than crumb rubber.
With Safeshell you get peace of mind that your infill is made from organic and foodgrade components. Now the only thing your athlete needs to worry about is the competition!
Without processing, Safeshell wouldn’t! We teamed up with a leading biotechnology firm to develop a patent-pending process that eliminates allergens that remain on the shell after separation from the nut. Following FDA guidelines, our process removes allergens below 2.4 parts per million.
Grown in the USA
Safeshell is made of 100% USA grown walnut shells. When buying Safeshell, you're supporting American farmers and agriculture. From their fields to yours!
A proprietary blend
For optimum performance, we blend Black and English walnut shells. Why? Black walnut shells are thicker and once the shells are ground, the grains are rounder and less abrasive. Using all round grains would be shifty so we combine it with the thinner, less round grains of ground English shells. The result of this proprietary mix is the perfect balance of firm, fast and player friendly.

Helpful Resources

Product Summary
Get a quick overview Safeshell's attributes and benefits!
Recommended System
Learn what system details USGreentech recommends when designing and installing a Safeshell field.
Here are the answers to the most frequently asked questions about Safeshell.
8 Year Warranty
Check out the best organic infill warranty. Safeshell is guaranteed for 8 years.
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