New and experienced runners alike will appreciate the underfoot ride and innovative technology packed into the New Balance FuelCell Propel v4. Featuring a thick FuelCell midsole combined with a TPU plate, this running shoe is designed to maximize comfort and traction to help keep you moving at top speeds. Engineered upper Synthetic/mesh construction FuelCell foam delivers a propulsive feel to help drive you forward Upper features no-sew construction for a sleek fit and feel TPU plate for superior propulsion Adjustable lace closure for a customized fit 6mm drop; due to variances created during the development and manufacturing processes, all references to 6mm drop are approximate New Balance FUELCELL PROPEL V4