When evaluating Japanese fabrics, focus on the Yarn Count (e.g., 40s, 60s) and Fabric Weight (GSM) to determine suitability for specific garments. For traditional aesthetics, verify the Dyeing Method, such as Shibori (resist-dyeing) or Yuzen (hand-painting). Ensure the Composition is clearly defined, whether it is 100% Organic Cotton, High-Grade Silk, or Technical Synthetic Blends like those used in high-performance 'Cool Tech' textiles. Additionally, check for Shrinkage Rates (ideally <3%) and Colorfastness to Light and Washing (Grade 4 or higher) to ensure long-term durability.