- 25Ss new autumn and winter Prada triangle logo thick-soled wool-lined short boots and snow boots. These simple thick-soled wool-lined snow boots are made of lamb wool. The innovative triangle logo has been reinterpreted as a classic element! Upper: two-tone polished cowhide, lining: real lamb wool, sole: TPU sole (genuine leather welt), code number: 35-39 (40, 41 customized, non-refundable),