At ultratex fabric , we have spent over a decade helping brands across the USA, Europe, Russia, and Southeast Asia source high-performance activewear fabrics. One of the most common challenges our clients face is nailing the technical specifications—GSM, width, and stretch. These three parameters directly determine the quality, cost, and end-user experience of the final garment. In this guide, I'll walk you through each spec in detail, share real-world lessons from our factory floor, and...



