... absolutely perfect for travel, camping, the beach, picnics,etc. Wicked Wedge Inflatable Backrest Travel Pillow, Wedge inflatable back support The ... is a lethal backache waiting to happen.Well the Wicked Wedge is based upon a design developed by physiotherapists ... at a festival, or more probably, the beach. Features:The Wicked Wedge inflatable back support offers three different angles: sitting up ...