The answer to the crossword for the term 'Synthetic Fiber Brand' is Arnel, a five letter word. Arnel is a brand of synthetic fiber created by the company Unifi, Inc. It is a polyester fiber made from recycled materials and is used in a variety of products such as apparel, home furnishings, and industrial applications. Arnel is known for its strength, durability, and softness, making it a popular choice for many consumers.