Altberg Leder-Bök® Suede & Nubuck SprayLeder Bk Spray from Altberg effectively nourishes and conditions suede, nubuck or combination footwear to maintain suppleness and flexibility, simultaneously adding water repellency. Formulated with synthetic oils and solvents it is absorbed into the leather to preserve resilience, which prevents cracking in high flex areas such as the toe box and ankle flexion zones. Leder Bk is water based, environmentally friendly and contained in a non PFC pump