Windyne Inc. introduces the first ever trailer fairing that horizontally telescopes and vertically hinges.Patented features allow the Flex Fairing to cover the largest surface area & save the most fuel of any other fairing on the market. SAE J1321 Type II testing resulted in a 7% reduction in fuel consumption.The patented horizontal telescoping panels accommodate for forward and rearward movement of the trailer tandems keeping the aerodynamic performance & payback optimized regardless of tandem position. The patented vertical lifting allows for unrivaled ground clearance. A lower 12" Flex skirt allows the fairing to ride within inches of the road yet not prohibit drivers from maneuvering over driveway entrances, railroad crossings or street curbs. Engineered to OEM standards using some of the most advanced materials available, the Windyne Flex Fairing with its adjustable rear panels and vertical retraction ability make it the most technologically advanced fairing on the market.