High modulus carbon fibre outer layer base for stiffness, backed with glass surrounding a thermoplastic fully mouldable core for custom forming and fitting PIKA Dupont Zytel ST801 super tough nylon 66 blade holder High grade stainless steel blade with a UV heat treatment process that will hold an edge like no other Firm heat moldable form fitting foam throughout the entire inside, including the tongue for easy custom fitting and support Super light micro-fiber and synthetic outer shell Waxed laces