When evaluating polyester lanyards, focus on material density and weaving technique. High-quality lanyards typically use flat polyester webbing or tubular polyester for durability. Ensure the width (standard 10mm, 15mm, 20mm, or 25mm) and thickness (usually 0.65mm to 0.9mm) meet your strength requirements. For branding, verify the printing method: silk-screen printing is cost-effective for simple logos, while heat-transfer (dye-sublimation) is essential for full-color, complex designs as it ensures the ink penetrates the fabric for long-lasting wear and fade resistance.