Nunn Bush® Excavate Men。Introducing the Nunn Bush Excavate boot, where sustainability meets rugged style. The recycled man-made upper ensures a boot built to last, while the removable BLOOM foam EVA insole, enriched with Smartscent technology, keeps your stride fresh. The shock-absorbing rubber sole and EVA midsole provide unparalleled support. Durable synthetic upper made of recycled materials Lace-up closure Round toe Padded collar Synthetic lining Removable BLOOM foam EVA insole with Smartscent technology EVA midsole Shock-absorbing rubber sole