When evaluating Printed Tricot Fabric, buyers must focus on Material Composition, typically a blend of Nylon/Spandex or Polyester/Spandex. For high-end swimwear or activewear, a Spandex content of 18%-22% is recommended to ensure superior elasticity and shape retention. Additionally, verify the Fabric Weight (GSM); standard swimwear usually ranges from 180g to 220g, while lightweight linings may be around 100g-130g. Ensure the Warp-Knitting technology used provides a 'run-proof' structure, which is essential for durability in performance apparel.