Dëff Wiz Jacket Key Case - BMWProduct Description Introducing Dff's extraordinary smart key case crafted with the exceptional strength and durability of DuPont's Kevlar, the renowned aramid fiber. Aramid fiber, also known as "super fiber," is trusted in aerospace, automotive, and high performance applications for its unmatched reliability. Experience the remarkable qualities of aramid fiber in Dff's smart key case. With approximately five times the strength of steel at a fraction