Our Idris II Mens Half-Zip Fleece is lightweight and warm - the perfect midlayer. It is made of soft microfleece fabric with flatlock seams to ensure ultimate comfort. It has a stylish half-zip design, making it ideal for any occasion. Microfleece: Very lightweight fleece, provides warmth without weight. Ideal layer in cold weather. Lightweight - Great for travelling, comfortable to wear and easy to pack. Half Zip: Opens at the neck for more comfort, extra ventilation and a great look.