Lightweight, breathable mesh upper with a TPU heel overlay for added durability and support. Features an adjustable hook and loop strap closure for easy on and off, and a full-length EVA sockliner for comfort and a custom fit. The cushioned EVA midsole provides all-day comfort, complemented by a lightweight, durable outsole. Style #: 3027105. Imported. The Under Armour Infant Boys Surge 4 AC Running Shoes in Castlerock with Anthracite colourway are cushioned, comfortable, light, and breathable. They offer maximum breathability with a performance mesh upper for increased ventilation and a lightweight, breathable feel. Ultimate durability is provided by a TPU heel overlay for added support, designed to go the distance. Superior comfort comes from enhanced cushioning around the ankle collar, ensuring a more comfortable, supportive step. Responsive sports shoes feature a cushioned EVA midsole for lightweight shock absorption, and a full-length EVA sockliner provides comfort.