LD Foam Lining. Comfortable foam padding that easily can be changed or removed for cleaning. Supracor™ honeycomb sandwich core. The honeycomb is integrated into the EPP liner for progressive energy absorption. Aramid membrane between the shell and EPP. Patent pending. The aramid membrane prevents penetration through the thin shell, without decreasing the cushioning properties. EPP Core. Density is optimized to work perfectly with Supracor™. Thin shell of a unique carbon fiber laminate, allowing the shell to be extremely thin and flexible and therefore more suitable to deconstruct on impact.