Australian merino wool lined - Micron 20 merino wool is specifically used to perform like no other material, as it breathes freely enabling odour free comfort. New streamlined sole: Constructed in two parts, dual density EVA bottom gives comfort, while the new moulded rubber outer sole with Emu tread adds extra traction. A toe and heel cap has been built into the outer sole to help the boot to wear better, also making the sole more aerodynamic and comfortable to walk in. Soft suede uppers Fully stitched upper trim