When sourcing plastic flower bags, the choice of material directly impacts durability and presentation. BOPP (Biaxially Oriented Polypropylene) is the industry standard for its high clarity and stiffness, providing a premium look. For heavy bouquets, LDPE (Low-Density Polyethylene) offers better puncture resistance and flexibility. Ensure the thickness is specified in microns; typically, 30-50 microns is ideal for standard retail, while 60+ microns is required for large, heavy arrangements to prevent tearing.