The famous production standards of NPS has secured Solovair a reputation with retailers and discerning customers, as a premium soft suspension product. NPS is organised in areas according to distinct stages of production. Each pair is only passed from one area to another when the respective operative is satisfied they are ready. In this respect, there is a far slimmer chance that an unsatisfactory shoe or boot will result at the end of the production process. In effect it is a continuous quality control process not employed by many other factories.