When evaluating cotton apparel, prioritize fabric weight (GSM); for T-shirts, 180-220 GSM is standard for premium quality, while hoodies require 300-400 GSM. Ensure the use of Combed Cotton or Ring-Spun Cotton to minimize impurities and enhance softness. Additionally, verify the yarn count (e.g., 32s or 40s)—higher counts result in a finer, smoother fabric. For durability, check for double-needle stitching on necklines and hems, and ensure pre-shrunk treatments are applied to keep shrinkage below 3-5%.