Selecting the right organic cotton terry fabric requires a focus on material purity, weight (GSM), and loop integrity. Buyers should prioritize GOTS (Global Organic Textile Standard) certified suppliers to ensure the entire supply chain meets organic and social criteria. For high-end bathrobes or towels, look for a GSM (Grams per Square Meter) between 400 and 600, while lighter apparel may require 200-300 GSM. Ensure the loops are dense and uniform, as this directly impacts the fabric's absorbency and hand-feel.