Actyv Portable Lumbar Support - VerticalActyv Portable Lumbar Support Vertical The portable vertical support, like all of our actyv products, was designed to let you bring your seating comfort with you wherever you go. You can fasten it to any seat you happen to be sitting in thanks to the adjustable webbing straps with clip fasteners. With the hand pump bulb, the vertical support may be inflated and deflated in a matter of seconds. Constructed of premium materials, which come with a layer