A sneaker that Devin Booker wore very sparingly in his rookie season was the Nike Kyrie 1.
Kyrie Irving’s first signature shoe utilizes Zoom Air in the forefoot, opting for court-feel over full-length cushioning. Kyrie’s unique playing style when pushing off with the sides of his feet is key to this shoe, with the traction riding up the forefoot portion of the midsole.
Book rocked the grey “All-Star” colorway in his first preseason in 2015, but never wore the shoe for the regular season.
You can find the Nike Kyrie 1 at StockX, Stadium Goods, and Flight Club.