Brooks Women's Launch 4 Black/Fuchsia Purple/Dazzling Blue 12 B US Imported Ready. Set. Blast off! Set your run in gravity-defying cushioning and response of the Brooks&reg; Launch 4 running shoe. Predecessor: Launch 3. Support Type: Neutral. Cushioning: Lightweight, flexible response. Surface: Road. Differential: 10 mm. 3D Fit Print upper technology applies strategic stretch and structure for a better fit and feel. Air mesh fabric upper provides optimal breathability and moisture management. Lace-up closure. Padded tongue and collar. Soft fabric lining supplies a great in-shoe feel. Removable Engage footbed. Full-length S-257 Cushsole midsole compound utilizes an insole board for increased plush and flexibility. BioMoGo DNA midsole supplies long-lasting cushioning, and fe