When evaluating faux fur, the most critical metric is GSM (Grams per Square Meter); high-end blankets typically range from 350 to 800 GSM to ensure a plush, heavy feel. You must also verify the material composition, usually a blend of Acrylic, Modacrylic, or Polyester. Acrylic is preferred for its wool-like feel and superior color retention, while Polyester offers durability and cost-effectiveness. Additionally, check the pile height (short vs. long pile) and ensure the backing material (such as PV fleece or Sherpa) is securely bonded to prevent shedding.