Roadwired R.A.P.S! Advanced Protection Large Wrap, Red Layered construction and overlappingself-securing design protects against the elements. Lining material is a true moisturevapor barrier 18 thick foam interlining throughout, to protect against bumps and jolts Patented Corrosion Intercept lining (originally developed by Lucent Technologies Bell Labs to protect missile and space components protects against environmental gasses, pollution and humidity, improving the performance (clock accuracy, key response, etc. of electronics, reducing errors, and extending useful life Hookloop closure material at all four corners allows R.A.P.S. to be folded, rolled and closed in virtually limitless configurations, to conform perfectly to any contents Velcro-compatible tricot exterior with Corrosion Intercept lining and mesh ventilation layer