When designing it, simple, reliable solutions were used. Their result is both comfort of use and reliability. The use of two side and one front, stretchable pockets allows for great flexibility in packaging as well as convenience. The lack of a typical flap allowed for a reduction in weight and the used rolled-up chimney with velcro closure is both reliable and failure-free. The used YKK fasteners from the superlight series, polyamide carrier tapes, and durable external materials guarantee long-term and trouble-free use.