Next we talk about the art and science of uppers, and why they are one of the most overlooked pieces of shoe design. We give our picks for favorite uppers over the last year and why they worked for us in a variety of categories like daily trainer, racers, and trail. Then we discuss and review all of the early HOKA 2022 offerings: Carbon X3, Kawana, Tecton X, and Mach Supersonic. We discuss where some of these fell short, who they may work for, and where HOKA may need to go next.