Base layers, thermals, long johns, long underwear, no matter what you call them, Merino Wool base layers are Mother Nature’s ultimate in warmth. Here at ioMerino, our high performing Merino Wool Thermal Base Layers are as good as it gets. Whether you’re going with a single layer in milder conditions or layering up a few, you’ll want them to be as lightweight and comfortable as they are warm.
Your Base Layer should deliver maximum heat retention without the risk of overheating and our Altitude and Ultra Ranges do exactly that. Both our Base Layer ranges are super soft, lightweight, breathable, thermo-regulating, odour resistant and natural. Choose between a tight fit Altitude base layers, or the sport fit Ultra base layers.
Shop Men's and Women's Merino Wool Base Layer Tanks, Tees, Long Sleeve Tops, Tights and more.