Maximum breathability - The performance mesh upper of these sports shoes delivers increased ventilation for a lightweight and breathable feel. Ultimate durability - Featuring a TPU heel overlay for added durability and support, these infant shoes are designed to go the distance come playtime. Superior comfort - With enhanced cushioning around the ankle, these trainers for girls let the wearer enjoy a more comfortable, supportive step. Children's trainers - A cushioned EVA midsole delivers lightweight shock absorption, and a full-length EVA sockliner provides comfort. Material and fit - Under Armour Girls UA GINF Surge 4 AC kids' running shoes, materials: Upper: 72% Textile, 28% Synthetic, Outsole: 57% Ethylene-Vinyl Acetate (EVA), 43% Rubber.