Seam Puckering in Garments with Causes and Remedies

Seam Puckering: Seam puckering is defined as seam gathering during sewing or after sewing, or laundering of garments, leading to an undesirable seam appearance to the garment. It is more frequent on woven fabrics especially on tightly woven fabric than knitted fabric. Seam puckering is typically caused by the following conditions:
Inherent puckering (structural jamming)
Tension puckering