The GEL-QUANTUM 90 IV GS training shoe merges performance-inspired technologies with modern aesthetics and makes them functional for young feet.

This shoe's upper is modified with a breathable mesh that's reinforced with synthetic leather overlays.

The update midsole halos our other designs in the GEL-QUANTUM collection. It features a full-length AMPLIFOAM cushioning material and rearfoot GEL technology for improved everyday comfort.