Why do wool sweaters pill so easily?
Before we reach for the miracle solution, let’s take a moment to understand. Pilling isn’t a manufacturing defect or a sign of neglect; it’s simply a natural reaction of the fibers. Wool, like cashmere, is composed of thin, flexible fibers that tend to shift. Friction—against a coat, a bag, or even a chair—causes some fibers to float to the surface and entwine, forming those familiar little balls.
Another common misconception: the finer and softer the fiber, the more susceptible it is to pilling. Paradoxically, a soft, high-quality sweater may pill more than a stiffer one. Washing also plays a key role: water, drum movement, and contact with other clothes intensify these microscopic frictions, invisible to the naked eye… until they become visible.
