The Icebreaker Tech T Long Sleeve is mid weight half zip neck base layer top made from soft jersey-knit 100% pure Merino wool. This top is non-itchy because Icebreaker are one of only a few companies in the world that use the best quality, super fine merino fibers. The jersey-knit is denser & more durable than the Everyday range that uses a rib-kit construction; this also leaves a smooth feeling finish which is great for next to skin comfort. In warm conditions this amazing fabric transports moisture away from the skin to be evaporated, keeping you cool & comfortable. Yet on the other h&, the super fine, soft wavy fibres contain millions of air pockets that lock in body heat to keep you warm in cold conditions. Truly an all year round, all conditions piece of kit. One of the best features of Icebreaker Merino Wool is its amazing ability to naturally resist odours. You can wear this top for many days before it starts to stink, making it perfect for multi day trips as you will only need to take one base layer. The 260 g/m² fabric is suitable for colder climates for example if you are off skiing in the alps or off to Scotland to do some winter mountaineering. Mid-weight Great for snow sports, outdoors, hiking, travel & lifestyle Offset shoulder seams to prevent pack rub Forward side seams to eliminate chafing Thumb loops Half zip Drop-tail hem for added coverage Fantastic wicking properties Fast drying Odour resistant Jersey Knit Non itchy