Mastercraft 600001 Features:

MasterCraft Safety’s adjustable lumbar system adjusts up to 3-inches in the lower lumbar area for improved support and even pressure distribution. The mechanical design of the system allows the unit to hold its form, even during the most rigorous trail or racing adventures. The Lumbar System can be installed into any MasterCraft seat at the time of assembly and is available with a left or right side adjustment handle.