The XTM Merino Wool Ladies Zip Neck Thermal Top will keep you warm and dry all day long. Say goodbye to thermal underwear with itchy fibres and hello to 100% non-mulesed fine Australian Merino! This XTM Merino wool base layer thermal top is the perfect balance of stretch comfort, warmth and wicking for skiing or snowboarding the ski slopes, camping or going to the footy. Merino wool is a natural wicking fibre that ensures sweat gets off your skin to keep you warm and dry all day.