Icebreaker base layer's are made from hand-picked merino wool directly from New Zealand's Southern Alps. Their garments are silky soft on the skin, insulate beautifully, breathe effectively and don’t itch, or hold odour. For cool days try the Oasis crew 200 top, or when its colder try the midweight 260 Tech top, you can even wear them together for extra insulation. They have two weights of leggings, the 200 or 260 that feature a fly for your convenience.