Freight Wing is an innovator in the semi-trailer aerodynamics industry. We have been in the business of creating fuel efficiency enhancing devices before there was a real demand for them! Freight Wing is based out of Seattle, WA. All of our products are made in America, and sold through every major trailer manufacturer in US and Canada. Our #1 selling product is the AeroFlex. It is a side skirt made of TPO, supported by a hinge and flexible rod system to provide maximum ground clearance. The AeroFlex is provide an average of 6% real-world fuel savings, is lightweight, durable, and proven - with over 13,000 units on the road today - and thousands more on order. We continue to be the market leader, and we continue to innovate and develop new products to bring to market.