REEBOK LTD. Premier Trinity KFS – Bon / Ash / Moonst: An advanced option for runners, movers and shakers, Reebok’s Premier Trinity KFS features the Kinetic Fit System, where elements of the shoe move with you to provide an always-perfect fit. Its DMX Ride midsole delivers lightweight cushioning, and the DMPR Tek traction outsole offers enhanced grip. This pair features a technical mesh upper as design detail.