When sourcing LDPE (Low-Density Polyethylene) garment bags, the most critical factor is thickness (gauge/micron). For standard retail protection, 20-30 microns is sufficient, while heavy-duty industrial use requires 50+ microns to prevent tearing. You must also specify the clarity level, as high-quality LDPE should be transparent and glossy to showcase the garment. Additionally, ensure the bags feature ventilation holes to prevent moisture buildup and pre-cut hanger holes for operational efficiency.