The Mizuno Duel Sonic is a fast, stripped-back racing flat engineered for speed-focused training, track intervals, and shorter road races. Positioned as a go-to shoe for runners transitiong into racing flats, it introduces Mizuno’s specialized Shinari architecture—a wave-like midsole geometry designed to accelerate toe-off and boost your natural propulsion.
Type: Neutral racing flat / Tempo shoe
Drop: 9 mm
Weight: approx. 220 g (men's)
Midsole: U4ic foam (responsive and firm) coupled with Shinari propulsion geometry
Outsole: X10 durable carbon rubber for reliable traction during high-speed cornering
Upper: Lightweight engineered mesh featuring a supportive midfoot structure for a locked-in racing fit