Description from website:

"Suede, leather, or nubuck upper

Super Stitch thread on upper

High abrasion hot melt underlays

High abrasion mesh

Perforated tongue mesh for breathability

EVA Strobel board for added Comfort

Impact-ALG™ technology features a polyurethane airbag to provide superior cushioning and impact protection

Lightweight high rebound foam midsole for comfort and support

Lightweight absorption abrasion-resistant sticky rubber outsole

Parametric outsole pattern for tread

Composition Upper: Leather (Cow) / Lining: Textile / Outsole: Rubber"

These were only worn for a few days so have very little wear on them.