Made from 100% Australian Merino wool at 200g/m2 and 18.5 micron, the Active200 3/4 Thermal Pant is fine enough to wear next to skin without the itch, and does the thermoregulating that wool does best – warm when it's cold, breathable when you're working hard. The wool is Woolmark Certified and sourced to the Responsible Wool Standard, with Oeko-Tex 100 certification for good measure. A gusset panel keeps things moving freely, flatlock seams stop chafing on longer days, and the 3/4 length layers cleanly under boots or a shorter base layer.