While Hoka has done collabs in the past (with Free People, for example), this latest limited-edition drop with Reformation represents the brand's biggest stylistic shift toward more "quiet" colorways. Reformation is the right partner for this move: The brand began as a vintage store that re-tailored clothing, but quickly expanded to make its own quietly-cool designs and launched online in 2013. Sustainability is at the forefront of everything they do, and 98% of its fabrics are made from recycled, regenerative or renewable materials. The brand also uses deadstock bags and offers customers the ability to resell clothing they no longer want or need through ThredUp. All of the new Hoka x Reformation styles are 100% recyclable through the fashion retailer's RefRecycling program, and made with recycled polyester or organic cotton.