Outsole: Non-Marking Rubber--A non-marking rubber outsole delivers exceptional traction and durability. Midsole Material: Molded EVA--Molded EVA provides flexible and lightweight cushioning. Heel Technology: adiPRENE®--Maximizes heel protection and stability, located under the heel providing extra protection from harmful impact forces Recommended Fit: These shoes run True to Size. Model Number: 011777