The Under Armour Surge 4 is a boys' running shoe built for school days, recess, and practice. A cushioned EVA midsole helps keep each stride light, while the breathable upper creates a close, sock-like fit. Synthetic overlays add durability, and the TPU heel overlay brings extra support for everyday miles and active play.Under Armour Surge 4 features:EVA midsole provides lightweight cushioning for everyday running.Full-length EVA sockliner supports a more customized fit.Breathable upper creates a lightweight, sock-like feel.Synthetic overlays reinforce high-wear areas for added durability.TPU heel overlay adds rearfoot support and structure.Rubber-knob outsole improves grip on school and playground surfaces.