Plastic Bag Faq

Poly mailers are a lightweight, easy to ship alternative to packing boxes. Poly mailers are flexible, self-sealing polyethylene (LDPE) envelopes that are ideal for shipping apparel, t-shirts and non-fragile items.

 

Our custom poly mailers are fun to design, easy to ship, waterproof and tear-resistant. All our poly mailers feature a self-adhesive strip to speed up the shipping process and minimum orders start as low as 5,000 mailers.

Ordering mailers that are slightly too small is one of the most common mistakes. The 3rd dimension is often overlooked when making the calculation. In addition to the width and length of your item, you need to consider 2 pertinent and commonly overlooked factors:

  1. The height or thickness of your item need to be kept in mind. Add this number to the dimension that is closest to the mailer’s inside dimension.

Example: If your item is 6″ x 6.5″ x 2.5″ thick, add thickness to both width and height (2.5 + 6 = 8.5″, 2.5 + 6.5 = 9″) You will need a mailer with at least 8.5″ width, 9″ length.

  1. Manufacturing variances occur and also have to be sondiered. Since there is no way to guarantee exact dimensions throughout an entire manufacturing production run, you should account for an extra 0.25″ on each side of item just in case you end up with a mailer on the smaller side.

Calculating the best mailer size can be a challenge. Don’t hesitate to contact us for help!

Yes, we offer glossy finishes and many other finishing options. We can add a stunning visual texture to your box using a high-quality four-color process labels, which can be printed with various finishes. We can also use clear laminates over you print that will make you boxes shine.



We print mailers as small as 3” x 6” and as wide as 30″x 40″ mailers. Contact us to discuss the mailer size you need.

Our mailers are primarily manufactured from coextruded films (white silver). We also offer a more economical option of straight mono (single-ply film).

Our mailers are self-seal bags. You lift up the liner and expose glue that’s ready to be pressed and closed for a seal.

Yes, that is one of the main advantages of using coextruded mailers. The mailers are tear resistant and very strong to absorb the beating they take during transit.

With our mailers, you have a choice of matte films or glossy. Each customer has their own requirements and preferences.

Some of our bags are made of recycled material. Contact us for specific information.

You can rest assured that your contents will remain secure from its point of origin to its destination. Our poly mailers are made from a multi-layer (co-extruded) 2.5 mil recycled polyethylene film. Most poly mailers on the market are constructed from a polyurethane thickness that ranges between 2 – 3 mil. At a thickness of 2.5 mil, our mailers fall right in the middle of that range. We manufacture our mailers with side weld heat seals and bottom fold construction which offers superior bursting strength. 

 

Since our inception in 2010, over 15 million parcels have arrived safely in EcoEnclose Mailers. We are confident that you will find our mailers to be effectively durable and moisture resistant with exceptional puncture resistance and tear strength. 

Our poly mailers are made in China in effort to provide a consistent and reliably constructed mailer.

Our poly mailers are made with 100% polyethylene material. The material is lightweight, flexible, tear resistant and waterproof.

Yes, our poly mailers can be printed in full color. There are no restrictions on the number of colors you can use and there are no additional fees.

Our poly mailers have 1-front side printing and do not include full bleed printing.

At a minimum, your artwork should be 300 PPI for poly mailers. You can increase the resolution of any image using Upscale.

Our poly mailers have a self-adhesive strip for easy closure. Mailers that are overfilled may require additional tape to secure the contents.

The adhesive strip is a clear, general purpose permanent adhesive with a white release liner.

Our poly mailers are 2.5 mil (63.5 microns) thick.

Poly mailers are suitable for shipping items that are fairly lightweight and are perfect for non-fragile items like apparel.

 

Below is a very rough guide as to how many t-shirts will fit into a specific size poly mailer. Please note, this is a guide, not a guarantee:

– About 2-3 medium shirts will fit into a 7.5″ x 12″ mailer.

– About 1-2 large shirts will fit into a 7.5″ x 12″ mailer.

– About 4-6 medium shirts will fit into a 10″ x 13″ mailer.

– About 4-5 large shirts will fit into a 10″ x 13″ mailer.

– About 10-16 medium shirts in a 14.5″ x 19″ mailer (blank poly mailers only).

– About 10-14 large shirts will fit in a 14.5″ x 19″ mailer (blank poly mailers only).

Make sure the item doesn’t move around inside the envelope. Make sure the item completely fills the bag, or that you have something to fill it up like packing peanuts or bubble wrap. Items with sharp corners or rigid edges should be wrapped with bubble wrap before placing in a poly mailer.

No, our poly mailers are unlined.

We offer custom poly mailer samples starting at just 5,000 units per design. If you would like to order more than 5,000 poly mailers and less than 50, add 50 units to your cart and then override the quantity to your desired number before finishing the checkout process.

We offer custom poly mailer samples starting at just 10 units per design. If you would like to order more than 10 poly mailers and less than 50, add 50 units to your cart and then override the quantity to your desired number before finishing the checkout process.

Yes, contact us for a quote to order more than 5,000 poly mailers.

Yes, you can order poly mailer samples here.

Yes, check out our blank bubble mailers here.

Padded envelopes are commonly produced with Kraft paper whereas bubble mailers are made with a polyethylene film making them resistant to moisture. Bubble mailers are also more flexible, making them a great option to handle shipping various shapes of objects.

Our bubble mailers are offered in an opaque, bright white. We do not currently offer the option to customize the bubble mailers.

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