Air Trainer Sky, Vibram Leaves [1998]The Air Trainer sky is certainly one of the more elusive running models to come out of this era, this elusiveness paired with its unique colourway, tooling and panelling make it a firm favourite of ours. The upper on the Air Trainer Sky is dissimilar to any Nike model from the period. It features a vibrant yellow breathable mesh thats overlayed with 3M detailing and bright red branding, a mixture of toned down grey materials such as textured nylon at