Glacier fleece is a great classic. It is made of microfleece that offers a slight warmth thanks to the thickness of the fabric. Small air pockets retain body heat without compromising breathability, so you stay warm without sweating. Abrasion-resistant linings on the upper torso and sleeves provide added durability. It is the ideal layer to wear with a waterproof shell. Standard Fit: This garment is exactly the right size for a comfortable and right fit.