GEL DS TRAINER 13 "White Pure Silver" 1203A607 100 Collaboration it provides a stable foundation it provides a stable foundation for heavy lifting while remaining flexible enough for high impact movements The Stranger Things x Nike Air Tailwind ‘79 “Upside Down” is one of the three models from the collaboration from the hit sci fi series and Nike in a special construction inspired by the “Upside Down” dimension from the show’s plot multi dimensional foundation for the model’s aggressive anatomical profile utilizing specialized dark grey mesh underlays and a segmented DuoSole® outsole that injects a layer of high octane luxury into the deconstructed performance build