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W New Balance Sonic FuelCore

W New Balance Sonic FuelCore

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A responsive underfoot feel with adaptive comfort, the New Balance FuelCore Sonic offers a lightweight and versatile running experience.

In order to deliver sufficient cushioning for daily training and a snappy ride on workout day, the FuelCore Sonic features a full length Revlite midsole. Paired with a lightweight rubber outsole, the shoe keeps weight at a minimum while offering plenty of traction on the roads.

For ultimate comfort, the Fuelcore Sonic features an innovative upper design. The shoe uses a synthetic mesh material for a soft feel and a bootie construction to create a near seamless wrap. To help runners create an extremely precise fit, the shoe is finished off with The Boa System. This run specific system is built into the upper to deliver a natural feeling midfoot wrap while also allowing runners to precisely adjust their shoes with a simple twist of a dial.

Whether you're picking up the pace or going the distance, the New Balance FuelCore Sonic delivers versatile cushioning with an extremely adaptive upper experience.


  • RevLite is an innovative foam compound that provides lightweight, responsive cushioning.
  • Blown rubber outsole increases cushioning and responsiveness.
  • The Boa System uses a micro-adjustable dial, super-strong lightweight laces, and low friction lace guides to engineer a precise, adaptable, long-lasting fit that is easy to engage and release. The fit solution specific to running shoes uses Boa's L6 dial to provide maximum impact protection and resistance to debris. TX4 laces are made of a dyneema and polyester blend for lightweight strength that is soft to the touch, along with the FormTX guide that encases the laces using textile that adapts to multi-directional movement.
  • Synthetic Mesh throughout the upper provides lightweight and breathable coverage.
  • Textile Overlays are strategically placed to wrap the foot for a secure fit.
  • No-Sew Bootie Construction offers an irritant free wrap with ultimate comfort.
  • VL-6 is a running specific last with a standard heel, forefoot, and toe-box height.


Support Neutral
Heel Drop 6mm 
Terrain Road
Weight 238g