What is a key feature of olefin fibers compared to other fibers?

Olefin fibers, also known as polypropylene fibers, are recognized as being the least absorbent of the common carpet fibers. This characteristic makes them highly effective in resisting stains and moisture, which is especially beneficial in environments where spills or dampness are prevalent. Their low absorbency allows them to repel water and other liquids, preventing them from soaking into the fiber and causing damage or discoloration.

In contrast, other fibers, such as wool or nylon, have higher absorbency levels, which can lead to staining and soiling if not properly maintained. The durability aspect of olefin fibers is notable; however, while they are durable in terms of resistance to wear, their main standout quality in the context of this question is their minimal absorbency. In summary, the key feature that sets olefin fibers apart from others is their limited capacity to absorb moisture and stains, making them a preferred choice for certain applications in carpet and upholstery contexts.