200 oasis merino ls half zipthe icebreaker 200 oasis merino ls half zip base layer provides exceptional temperature regulation and comfort for all outdoor pursuits, whether on wheels, feet, boards or skis.with bodyfittrade technology, the icebreaker 200 oasis merino ls half zip base layer is perfect for layering before you head out on any adventure, with its ability to thermo regulate, keeping you comfortable and fresh when the temperatures are slightly warmer as well as insulating you in the cold. If too warm, simply un zip the neck for a fresh burst of ventilation. Merino wool is also exceptional at removing moisture from the skin as it forms and provides odour resistance, which is great for longer pursuits.when moving through the mountains, you'll be moving freely thanks to flatlock seams that prevent chafing, alongside underarm gussets that add a touch of comfort and mobility. Featureszip neck collar for temperature regulationoffset shoulder seams prevent pack rubflatlock seams stop chafingunderarm gussets for comfort and mobilitydrop tail hem for added coveragebuy icebreaker from chain reaction cycles, the world's largest online bike store.