18 x 18 Flat Poly Bags (4 Mil) - Heavy-Duty Protection for Apparel & Merchandise
These extra-thick 4 mil flat poly bags provide serious protection for clothing, textiles, and merchandise. At 18 x 18 inches, they're perfectly sized for folded t-shirts, sweaters, and small soft goods. Whether you're shipping orders from your online shop or organizing inventory, these crystal-clear bags keep your products protected and presentation-ready.
Specs: 18 x 18" | 4 mil | LDPE (Low-Density Polyethylene) | 500/case | FDA food-contact compliant
Key Features
- Heavy 4 Mil Thickness: Four times thicker than standard 1 mil bags — resists punctures, tears, and rough handling during shipping
- Crystal-Clear LDPE: 100% virgin low-density polyethylene provides excellent clarity so customers see exactly what they're getting
- Generous 18x18 Size: Fits folded t-shirts, hoodies, sweaters, small blankets, and boxed merchandise with room to seal
- FDA Food-Contact Compliant: Made from virgin resin that meets FDA/USDA specifications — safe for textile and food applications
Applications
- Online Apparel Sellers: Perfect inner bags for Etsy clothing shops, Poshmark sellers, and small boutiques shipping t-shirts and soft goods
- Craft Fair Vendors: Protect handmade blankets, scarves, and textile crafts from dust and handling at markets
- Inventory Organization: Keep seasonal apparel clean and organized in storage — the heavy 4 mil won't split or tear over time
- Retail Packaging: Professional presentation for merchandise, boxed gifts, and promotional items
Common Questions
Q: What clothing items fit in an 18x18 poly bag?
A: These bags fit most folded adult t-shirts, polo shirts, sweaters, and lightweight hoodies. They also work great for baby blankets, cloth napkin sets, and small textile gifts. The square shape gives you flexibility in how you fold and present items.
Q: Why choose 4 mil over thinner bags?
A: The 4 mil thickness is four times heavier than standard 1 mil bags. This extra durability prevents tears from hangers, zippers, buttons, or rough shipping conditions. If you're mailing products or storing items long-term, 4 mil pays for itself in fewer damaged goods.
Q: Can I seal these bags closed?
A: Yes! These flat poly bags can be heat sealed, taped, or closed with twist ties. For a professional look, use a tabletop impulse sealer — they're inexpensive and create airtight seals.
Why Choose Cellobags.com
We've spent 40+ years helping small businesses look professional without breaking the bank. Our wholesale pricing protects your margins, and most orders ship within 24 hours so you're never scrambling before market day. Questions? Our team actually knows packaging — not just phone scripts.