12 x 18 Flat Poly Bags (4 Mil) - Heavy-Duty Protection for Apparel and Merchandise
These heavy-duty 12 x 18 flat poly bags deliver serious protection for your products. At 4 mil thickness, they're built to handle apparel, merchandise, and items that need extra durability during storage or shipping. The generous size accommodates folded shirts, sweaters, craft supplies, and larger merchandise with room to spare.
Specs: 12 x 18" | 4 mil | LDPE Polyethylene | 500/case | FDA food-contact compliant
Key Features
- Heavy 4 Mil Thickness: Puncture-resistant and tear-resistant for demanding applications — no worries about bags ripping during handling or transit
- Crystal-Clear Material: 100% virgin LDPE lets customers see your products while keeping them protected from dust, moisture, and handling
- Generous 12 x 18" Size: Fits folded t-shirts, sweaters, craft projects, documents, and larger merchandise items with ease
- Versatile Closure Options: Heat seal for permanent closure or fold over with tape for easy opening — works however you need it
Applications
- Apparel & Fashion: Package t-shirts, sweaters, scarves, and accessories for retail display, online orders, or wholesale shipments
- Craft Businesses: Protect handmade quilts, fabric pieces, yarn projects, and textile crafts from dust and moisture
- Merchandise & Retail: Keep posters, prints, calendars, and promotional materials crisp and protected during storage and shipping
- Shipping Protection: Add an extra layer of moisture and dirt protection inside shipping boxes for valuable items
Common Questions
Q: What can I fit in a 12 x 18 poly bag?
A: This size comfortably fits folded adult t-shirts, small sweaters, 11x14 prints or photos, letter-size documents with room for cushioning, and most standard retail merchandise. The 4 mil thickness means you can pack heavier items without worrying about tears.
Q: Are these bags food safe?
A: Yes! These bags are made from 100% virgin LDPE that meets FDA/USDA specifications for food contact. They're great for storing dry goods, baked items, or any food that doesn't require heat sealing.
Q: What's the difference between 4 mil and thinner bags?
A: At 4 mil, these are considered heavy-duty bags — about twice as thick as standard 2 mil poly bags. They resist punctures, tears, and rough handling much better, making them ideal for shipping, heavier items, or situations where durability matters.
Why Choose Cellobags.com
For over 40 years, we've been helping small businesses and craft sellers find the right packaging at the right price. Our 500-count cases give you wholesale pricing without warehouse minimums, and most orders ship within 24 hours so your business keeps moving.