Brooks Women's Adrenaline GTS 14 Ombre Purple/Blue Support Running Shoes, Size 7 Extended Caterpiller Crash Pad: Allows full ground contact for a crazy nice heel-to-toe transition New lacing design: Evens out lace pressure to create a snug fit 3D Fit Print: Adds lightweight, flexible, no-stitch fit 3D Fit Print: Adds lightweight, flexible, no-stitch fit Omega Flex Grooves: Provide flexibility Adjustable Saddle Construction: Offers a conforming fit Progressive Diagonal Rollbar: Gives stability