At LET, we’ve transformed the game on and off the court. Founded by two Boston University doubles partners, we collect old tennis strings and repurpose them into polyester yarn for clothing manufacturing. By closing the loop between the end of tennis string life cycles and the beginning of polyester clothing production, we prevent trillions of microplastics from polluting our water sources daily and cut CO2 emissions from polyester manufacturing by 70%. LET isn’t just recycling—it’s reimagining sustainability.

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