Flat Poly Bags

Open end flat poly bags are the most common and economical bags for shipping or bundling products, for household use, and as the universal plastic bag for everyday tasks. These high quality polyethylene bags meet FDA and USDA requirements for food and pharmaceutical packaging, and over 100 clear sizes ship immediately.

Buy wholesale and in bulk direct from Arplast, a U.S. poly-bag manufacturer with 30 years in the business, volume discounts, and no minimum on in-stock items.

What They Are

A flat poly bag is a simple, top-loading sleeve sealed on three sides and open on the fourth — no zipper and no adhesive. Drop your product in and close the bag with a twist tie, heat seal, or tape. The clear polyethylene film lets your product show through while protecting it from dust and handling.

• Open end design: top-loading; close with twist ties, heat seal, or tape.
• Material: high quality polyethylene, meeting FDA and USDA requirements for food and pharmaceutical packaging.
• Clarity: crystal-clear film for full product visibility.

Thicknesses & Types

Flat poly bags come in three stock gauges plus a high-speed wicketed style:

• 1 Mil Clear Plastic Bags: the lightest, most economical gauge for light-duty packaging, bundling, and protecting small parts.
• 1.5 Mil Clear Plastic Bags: a versatile mid-weight gauge that balances economy with added strength for everyday packaging.
• 2 Mil Clear Plastic Bags: a heavier, more durable gauge for products that need extra puncture resistance and a sturdier feel.
• Wicket Poly Bags: flat bags loaded on a wicket for high-speed, high-volume bagging lines and fulfillment.

“Mil” measures film thickness — one mil equals one-thousandth of an inch — so a 2 mil bag has twice the wall thickness of a 1 mil bag.

How to Choose the Right Gauge

Choosing the right thickness is mostly about the weight and edges of what you are bagging:

• 1 mil: ideal for lightweight, smooth items such as apparel, paper, small parts, and bundling, where cost per bag matters most.
• 1.5 mil: a practical all-purpose choice when you want more tear resistance than 1 mil without the heaviest gauge.
• 2 mil: the right pick for heavier products, firmer edges, or anything handled and shipped frequently.

Read sizes as width by length — measure the open end (width) first, then length — and size the bag so your product slides in with room to seal at the top.

Sizes & Custom Options

• 100+ stock sizes: our inventory includes over 100 clear plastic bag sizes ready for immediate shipment.
• Custom sizes & gauges: these bags can be custom made to any size or gauge you choose.
• Custom printing: available for all bags upon request — add your logo, product info, or instructions right on the film.

Best For

• Food & pharmaceutical: FDA- and USDA-compliant polyethylene film suitable for food and pharmaceutical packaging.
• Retail & e-commerce: clean, clear presentation on the shelf or in the box, with optional custom printing for branding.
• Manufacturing & assembly: bundling components, kitting parts, and protecting finished goods from dust and moisture.
• Warehouse & fulfillment: high-throughput operations can move to wicketed bags for faster, machine-fed bagging.
• Household & everyday use: general storage, organizing, and protecting items around the home.

Why Buy From Arplast

For more than 30 years, Arplast Poly & Packaging has manufactured and distributed flat poly bags to U.S. businesses at true wholesale and bulk pricing — with volume discounts and no minimum on in-stock items. You get over 100 clear sizes ready for immediate shipment, plus in-house custom sizes, gauges, and custom printing on request. If you need a bag that reseals rather than seals once, see our zip top reclosable bags; for mailing finished goods directly to customers, look at our opaque poly mailers. Order direct from the manufacturer and skip the markup.

Frequently asked questions

What are flat poly bags?

Flat poly bags, also called open end flat poly bags, are the most common and economical bags for shipping, storing, and bundling products and for everyday household use. They are open-ended high quality polyethylene sleeves you fill and then close with a twist tie, tape, or heat seal.

What thicknesses (mil) are flat poly bags available in?

Arplast stocks flat poly bags in 1 mil, 1.5 mil, and 2 mil gauges. Lighter 1 mil suits economical bundling and small parts, 1.5 mil is a versatile all-purpose gauge, and 2 mil offers extra durability for heavier items. Bags can also be custom made to any gauge you choose.

Are flat poly bags safe for food and pharmaceutical packaging?

Yes. These open end flat poly bags are made of high quality polyethylene that meets FDA and USDA requirements for food and pharmaceutical packaging.

What sizes do flat poly bags come in?

Our inventory includes over 100 clear plastic bag sizes ready for immediate shipment. If a stock size does not fit your product, the bags can be custom made to any size or gauge you choose.

Can I get flat poly bags custom printed or in a custom size?

Yes. These bags can be custom made to any size or gauge, and custom printing is available for all bags upon request.

Do you offer wholesale and bulk pricing on flat poly bags?

Yes. Arplast is a 30-year US manufacturer and distributor selling wholesale and bulk with volume discounts and no minimum on in-stock items, including over 100 flat poly bag sizes ready to ship.