The Shannon features:

• UPPER:High-quality leathers. Nubuck treated with 3M Scotchgard for stain resistance.
• LINING:Chrome-free leather.
• SOCKLINING:Chrome-free suede for breathability.
• FOOTBED:Cushioned, energy-return PU.
• MIDSOLE:Lightweight BPU with EVA/cork wedge.
• OUTSOLE:Rubber for long-lasting wear.
• HOOK & LOOP ADJUSTABILITY