The rangfe of Icebreaker Oasis base layers are what they are famous for. These best-sellers are designed to contour the body and will easily flex with you, allowing maximum movement, whatever the activity. Not too heavy, not too light, our Oasis is made from 100% merino midweight jersey, making them your go to base layers for year-round layering and everyday comfort. Enjoy the natural benefits of merino, including odour resistance and temperature regulation, keeping you warm whilst not overheating.