As a midlayer or on its own, the Beta Contrast Zip-Neck Top will keep you warm and comfortable. It's made of bonded fleece fabric, that's lightweight and soft on the skin, with a half-zip for added ventilation. Bonded Fleece - Heavier & warmer, layers of fleece bonded togetherLightweight - Great for travelling, comfortable to wear and easy to packHalf Zip - Opens at the neck for more comfort, extra ventilation and a great lookWarm & Cosy - fabric feels soft on the skin and keeps you warm