Mizuno Neo Zen 2 is a daily trainer built for versatile road running. It pairs a nitrogen-infused MIZUNO ENERZY NXT midsole with Smooth Speed Assist geometry for soft cushioning, energy return and smooth transitions on regular runs and faster efforts. Key attributes: Purple | Viola | Mesh | High cushioning | Energy return | Breathable upper | Smooth transitions | Removable insole | Secure heel fit | Sock-like mesh upper | Smooth Speed Assist midsole geometry | Secure heel construction | Dimensions & fit: Drop: 6 mm | Heel stack height: 40.5 mm | Forefoot stack height: 34.5 mm | Weight: 240 g | Regular fit | Comfortable, secure fit in the heel | Composition & care: Textile (mesh upper) | Synthetic (upper reinforcements) | MIZUNO ENERZY NXT (midsole EVA) | Rubber (X10 outsole)