Wilson 'Triniti' Tennis Ball

overall rating:



Andrew (Hao) HUANG
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“Andrew, I did not expect these Wilson Triniti Balls would still be playable after using them for 4 times already,” my tennis hitting partner said to me after our training, while putting the balls back to a paper container instead of a conventional plastic container.

“Me either,” I replied, staring at the novel container and being surprised by the fact that the balls were still durable after 4 times’ bashing.

Indeed, based on my experience, the normal life span of a tennis ball (being bouncy to certain level) is approximately 3 hours’ intense hitting. However, the Wilson Triniti Balls I played that day certainly disobeyed the 3-hour-rule. Therefore, I am interested in reviewing Triniti Balls in more details.

Additionally, according to Wilson Labs, an estimated 400 million tennis balls and 125 million tennis ball containers are purchased and discarded annually, adding to landfills and other environmental challenges. Therefore, it is imperative to find and promote more sustainable and durable high-performance tennis balls that are both eco-friendly and empowering to players during peak performance.

After the first-round research, I think Wilson Triniti Balls stand out from the crowd as it tries to commit to the sustainable practice from the product’s design to packaging. Most importantly, Wilson’s continuous engagement in promoting sustainability not only makes the products more reliable, but it also may have a spill-over effect to other tennis goods brands (can refer to my previous review regarding Wilson ‘Naked Series’ racquet).

What it's made of:


Wilson Triniti Balls are sustainable in two areas: the core of the ball and the recyclable packaging.

In regards to the core of the Triniti Ball, it is made from a plastomer material which delivers a higher degree of bounce consistency so that the ball can stay in play longer. The statistics show that Triniti balls maintain 4 times longer than a standard rubber Wilson Tennis ball. The secret sauce of plastomer material is that it weighs less than the traditional core of a tennis ball, which allows Wilson Product Designers to thicken the core’s walls; most importantly, this new core eliminates the need for pressurized plastic packaging, which leads to the next point we are going to talk about – its sustainable packaging.

In terms of Triniti’s packaging, Triniti balls are packed in a recyclable and biodegradable cardboard sleeve, which is made from 100% FSC certified materials. Consequently, they may reduce their contribution to the 125 million tennis ball containers that end up in landfills globally each year.

Therefore, I will rate 2.5 planets for this section because of Triniti’s revolutionary core design which make using recyclable container feasible, instead of the traditional plastic container. There are 0.5 planets to go to get a full score since I am looking forward to figuring out whether there are any eco-unfriendly materials that we can further substitute and thus how the sustainability level can be further increased in the future.

How it's made:


As discussed in the previous section, the core of Triniti Balls is made of low-density plastomer material which can maintain longer than a standard rubber core, reducing the number of cans used per player per year. Most importantly, this new core eliminates the need for pressurized plastic packaging and thus making the use of recyclable cardboard packaging possible.

In terms of the felt, Triniti Balls have STR felt, which is 50% more flexible than conventional tennis ball felt, enhancing the durability of the balls. Also, for the performance of players who hit Triniti Balls, STR felt creates more core compression and longer dwell times which helps players have more control over the ball.

However, as mentioned earlier, AS I am looking forward to knowing whether there are any eco-unfriendly materials that we can further substitute and thus how the sustainability level can be further increased in the future, I will rate 2 planets for this section at the moment.

Who makes it:


In my previous review about Wilson ‘Naked Series’, I have discussed in detail why I think Wilson is a leading Sporting Goods company that has brought many innovative and eco-friendly products and has continuously taken initiatives to promote sustainability.

In 2018, Wilson Tennis started to partner with Recycle Balls to collect, recycle and reuse 20 million tennis balls in the U.S. over a three-year period. In 2019, Wilson Tennis introduced the world’s first eco-conscious, high-performance tennis ball – Triniti. With 100% sustainable packaging, they maintain a fresh-ball-feel 4 times longer to reduce consumption and waste. 5% of Triniti profits support worldwide sustainability efforts. In the same year, “Wilson Pact” was founded in order to introduce sustainably-minded habits into the fabric of Wilson Sporting Goods’ company culture. In 2020, Wilson Tennis introduced the Eco Overcap across key tennis ball franchises, which has reduced the amount of plastic by half and left a smaller footprint on the environment after it had been used.

It is worth noting that, another sustainability analyst Bennett Hall, in his review regarding Wilson Evolution Basketball, has also highlighted Wilson’s involvement in promoting a more sustainable sporting goods industry.

Therefore, I will keep 2.5 planets for this section as my previous review because of Wilson’s continuous effort and success in trying to incorporate sustainable-guidelines in its products’ design, packaging and delivery.

As a side note, I think Wilson really seems to be the sporting goods manufacturer that are leading the sustainability tide in the industry. I am really looking forward to having a conversation regarding their current sustainability-related practices in more details and also their ambition about where they are heading to.