How To Care For Nappa Leather Shoes at Debra Masters blog Designer Nappa Leather Slides For Women Foldable Flat Heeled Catwalk White Matelass Nappa Leather Slides Miu Miu Caramel Matelass Nappa Leather Slides Miu Miu Sandals For Women Miu Miu Caramel Padded Nappa Leather Sandals PRADA. Miu Miu's matelass nappa leather Sandals are distinguished by the matelass work that gives a three dimensional effect to the upper. The design is embellished with metal lettering, while the leather sole and banded leather heel complete the model with elegance and attention to detail.