How Does Polar Fleece Differ From Natural Fleece?
Materials While natural fleece comes from animals such as sheep, polar fleece is a synthetic fabric made from Polyethylene terephthalate, or PET, fibers, often referred to simply as polyester. This makes it an animal-free wool alternative acceptable to many vegans. Since PET is also used to make plastic bottles, polar fleece can also be made from recycled bottles, reducing the need to use petroleum to generate new polyester. Moisture Absorbency Natural fleece easily soaks up moisture. According to the Kentucky Sheep and Wool Producers Association, “Wool can easily absorb up to 30 percent of its weight in moisture without feeling damp or clammy.” For this reason, wool is often used in winter hats and coats, as well as all-natural diaper covers and mattress pads. In contrast, polar fleece absorbs less than 1 percent of its weight in moisture, even when fully soaked, and remains breathable and lightweight. For this reason, polar fleece is popular in outerwear and mountain climbing clothin
