CircularString keeps used tennis strings out of landfill and turns them into wearable, sustainable clothing. Every shirt on this page started as a string that would otherwise have been binned, made with 59% less CO₂ than material made from scratch. That's the difference between recycling a string and landfilling it.
CircularString partners with tennis facilities, tournaments, and teams to collect used polyester tennis string before it's thrown away, diverting it from landfill.
Advanced recycling facilities transform that string into virgin-quality material.
The material is crafted into the shirts on this page: sustainable, hard-wearing, and proof that a used string doesn't have to be waste.
"The quality of the merch is brilliant. My Hubba tee has been through a year of washes and still looks brand new."Sarah Mitchell, Operations Manager
"Ordered kit for our whole team. Sizing was spot on, delivery was quick, and everyone loves wearing it on site."James Whitfield, Facilities Lead
"Love that every piece ties back to Hubba's zero-waste mission. Great quality, and a great cause to wear."Priya Sharma, Sustainability Consultant
"From order to doorstep in two days, in fully recyclable packaging. Exactly what you'd expect from Hubba."Tom Bailey, Site Manager
