Truxedo 19-20 Ford Ranger 5ft Lo Pro Bed Cover turn14-atp and the structure is such

and the structure is such that air crosses vertically and passes through them by crossing each other's directions

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Truxedo 19-20 Ford Ranger 5ft Lo Pro Bed Cover turn14-atp and the structure is suchManufacturer Part # : 531001 Market Description A sleek, low profile design is the signature of the Lo Pro. Heavy duty construction and the patented automatic tension control keep the cover looking great in any weather condition. The Lo Pro mounts inside the rails of the truck bed, providing full access to stake pocket holes for use with additional accessories. Stylish design, simple functionality and durable bed protection are what make the Lo Pro