When sourcing women's pants, the material composition directly impacts comfort, durability, and market positioning. For yoga and activewear, prioritize Nylon/Spandex blends (80/20 or 75/25) for superior four-way stretch and moisture-wicking properties. For formal trousers, look for TR (Tetron Rayon) fabrics or wool blends that offer a crisp drape and wrinkle resistance. Always request a GSM (Grams per Square Meter) specification—higher GSM (e.g., 280-320 for leggings) ensures squat-proof opacity, while lower GSM (150-200) is suitable for lightweight summer linen pants.