When evaluating wool suiting, the most critical factor is the Super Number (e.g., Super 100s to 180s), which indicates the fineness of the wool fibers; higher numbers signify a softer, more luxurious feel but may be less durable for daily wear. You must also verify the fabric weight, typically measured in Grams per Linear Meter (GLM) or GSM—lightweight (200-240g) is ideal for summer, while mid-weight (270-340g) is best for all-season suits. Additionally, confirm the composition percentage, ensuring it is either 100% Virgin Wool or a specific blend (like wool-silk or wool-cashmere) to meet your target market's quality expectations.