Men's Merino Wool Thermal Underwear 

Come on fellas, are you seriously still wearing regular undies? Or worse, undies pretending to be natural that are basically still glorified synthetics - yes, we’re looking at you Bamboo Viscose people! Get your most important bits into these superfine Australian Merino wool undies. Our all-time best-selling Merino Underwear offers superior performance to keep you warm and comfortable when (and where!) you need it the most. From briefs to trunks to boxers - including our new heavy duty boxers that are built to withstand extra rub and friction in THAT area, we’ve got you covered. Which is why people who know, go with io. Because it’s incredible outside.