Cotton yarn is a type of thread made from the fibers of the cotton plant. It is widely used in knitting, crocheting, and weaving due to its softness, breathability, and durability. Cotton yarn comes in various weights and colors, making it versatile for different projects, from clothing to home decor. This yarn is popular among crafters because it is easy to work with and can be machine-washed. Additionally, cotton yarn is often preferred for warm-weather garments, as it helps keep the wearer cool. It is also a natural fiber, making it an eco-friendly choice compared to synthetic alternatives.