Saucony Kid's Endorphin KDZ Running Shoe (Little Kid/Youth)Part of the Endorphin collection you love, engineered specially for kids. Durable and breathable, it allows kids to do what they do best run and play. The Endorphin KDZ features a higher toe spring that propels kids forward thanks to a midsole inspired by adult SPEEDROLL technology. FEATURES & BENEFITS Midsole inspired by adult SPEEDROLL technology provides a higher toe spring that propels kids forward A thicker midsole with PWRRUN cushioning provides