What's Omni, you ask? It means universal, inclusive and all. Playtime is about freedom and imagination. As the ultimate play shoe, there are no limits when your kid pulls these Nikes on. They're durable for any indoor court surface and lightweight to help make play comfortable. Play-Ready Traction:From indoor volleyball courts to indoor tennis courts, a non-marking rubber sole provides traction. Plus rubber wraps up the sides of the shoes for extra durability.,Move In Any Way:We designed these to be wide around the heel and forefoot so kids have the room they need. Plus, super-soft foam lets little feet sit low to the ground to promote more natural movement.,Built for All-Day Wear:Breathable mesh feels soft and lightweight. A reinforced toe tip helps make these durable for kids who drag their toes. More Benefits:Cut-outs in the rubber sole create a lighter and more flexible feel.Synthetic overlays around the heel and eyestays provide extra durability.