Girls' Nike Downshifter 7 (GS) Running Shoe LIGHTWEIGHT COMFORT AND SUPPORT. The minimally designed Girls' Nike Downshifter 7 (GS) Running Shoe is made with a thin layer of mesh strengthened with no-sew overlays. The articulated foam midsole provides lightweight cushioning, with flex grooves that promote natural motion. Mesh upper for maximum breathability. Phylon midsole provides lightweight cushioning. Flex grooves allow your foot to move naturally. No-sew overlays provide durability and support.