Description from GOAT.com While other Nike Air Max sneakers have all utilized Air built for performance, the Air Max 270 uses an Air Unit designed solely for lifestyle. The Air Max 270 Flyknit ‘Olive Flak’ sneaker features the model’s large, 270-degree Air bag in vibrant orange, part of an orange-and-olive colorway that pays homage to past styles. The upper is made of lightweight Flyknit for breathable comfort and features asymmetrical laces and Nike Air branding. These shoes are men's size 8.5 they have no sizing tag but that's the size I wear in shoes and they fit perfect. They're in excellent shape although missing insoles which is likely where the size tag is in this model.