Flow Collection from Bedgear has a dual chamber that is soft on one side and firmer on the other and features a patented 100 percent breathable cover. The Air X fabric is a 3 D structure that creates a cushion of air with spring like yarns that allows air to move more rapidly. It has a soft, jersey like feel, gray colored cover with eye catching metallic silver colored piping with slate blue mesh sides. The lowest height pillow includes one air vent and a mesh patch on top and bottom while the other three heights include 10 air vents and mesh on all sides. The air vents and mesh give the Flow pillow cross ventilation for maximum breathability. Flows zip off removable and washable cover creates a clean and healthy sleep environment