The bag is composed of a 5-layer sandwich construction.
- layer: outer, 100% full textured calfskin.
- layer: 3 mm of soft thick foam, provides a shock absorber affect.
- layer: 2 mm of thick hardened plastic floor plate, which acts to support the bag and protect the instrument.
- layer: 20 mm inner padding of foam, which huddles against the bass body and builds a protective shell for the instrument.
- layer: antistatic hardwearing polyamide and two specially positioned leather patches protecting the bridge, strings and instrument hardware.