The updated SONIC 4 BALANCE is designed to be as springy as it is cushioned. We’ve kept our Optivibe™ cushioning to dampen uncomfortable vibrations without sacrificing energy return, so you get a really responsive ride. Now with a softer mesh and inner booty construction, this shoe is revving to go the extra mile.
- Inlay sole
- Textile
- Lining
- Textile MCL
- Outsole
- Rubber
- Upper
- Textile / Synthetic
- Heel stack height
- 28 mm
- Drop
- 8 in mm
- Forefoot stack height
- 20 mm
- Weight
- 257 g
- Drop
- Regular Drop (>=8)
- Intensity of usage
- Training and racing
- Lacing system
- Regular laces
- Anatomical fit
- Standard fit
- Road biomechanical fit
- Balanced transition
