Merino wool is the superstar of sweater yarns. It’s soft, breathable, and has excellent elasticity, making it ideal for fitted garments. It’s also widely available in different weights and textures, from fingering to bulky.
Pros: Soft, warm, and perfect for next-to-skin wear.
Cons: Tends to pill over time, especially in lower micron counts.
Best for: Lightweight pullovers, fitted sweaters, and all-season garments.