Thread Size: Why It Matters More Than You Think

When it comes to garment construction, thread is often overlooked—but it plays a critical role in how a piece looks, wears, and lasts. One of the most important variables? Thread size.

Thread size determines both the strength and the visual impact of a seam. Heavier threads (higher tex numbers) are used in applications like denim, outerwear, and leather goods—where durability and topstitch visibility matter. Lighter threads (lower tex numbers) are more appropriate for fine wovens, knits, and lightweight garments, where subtlety and flexibility are key. Using the wrong thread size can lead to puckered seams, broken stitches, or weakened construction over time.

As more consumers shift toward quality and long-lasting goods—especially in the movement back to American-made craftsmanship—details like thread size are no longer just a factory concern. They’re part of what defines a truly well-made garment.