What are the dimensions of FlexiPAK mailing bags and how to read them correctly?

We state the dimensions of mailing bags in the order width x depth (bottom) x height + flap in cm. We offer sizes from 26x7x41+5 cm up to 36x10x56+5 cm in both white and brown color. The wide cross bottom with a depth of 7-10 cm allows packaging of bulkier items than classic envelopes.

What material are the mailing bags made from and how durable are they?

FlexiPAK mailing bags are made from strong Kraft paper with a grammage of 100 gr from recycled or primary fiber. This material is characterized by high resistance to mechanical damage and high tensile strength, so shipments withstand transport without damage.

How are mailing envelopes for shipments closed?

All FlexiPAK mailing bags have a self-adhesive strip on the flap for easy and secure closure. Some types (e.g., FlexiPAK 30x8x43+11 brown) even contain two self-adhesive strips - the customer can use the second one when returning the shipment.

What printing options do you offer for mailing bags?

We offer three types of printing for mailing bags: silkscreen (1-6 Pantone colors, 100-1000 pcs), flexography (1-2 colors, 500-30000 pcs) and CMYK digital print (100-10000 pcs). Printing is possible on all sizes in both colors - white and brown.

What is the price of mailing bags and what is the MOQ?

The price of mailing bags starts from 8,10 Kč/pcs at introductory prices for the period 2022/2023. MOQ is 100 pieces and we provide volume discounts. We ship unprinted bags within 24 hours.

What types of shipments are postal bags most suitable for?

Postal bags are ideal for e-shops for packaging books, clothing and small items that don't fit into classic envelopes. Thanks to the wide bottom, they can accommodate A4, A3 and even larger format documents. They are a cost-effective alternative to boxes with the best price/performance ratio.

Postal bags and shipping envelopes

Postal bags - fast and cost-effective packaging for your shipments

Postal bags, also known as shipping envelopes, are transport packaging frequently used for packing orders with books, clothing or small items that no longer fit in ordinary envelopes without a bottom. The bottom of postal bags is a wide cross bottom with a depth of 7 - 10 cm. The bags are made from durable kraft paper with a grammage of 100 gr. We offer them in several sizes and in 2 standard colors - white and natural brown. The material is sufficiently strong to resist damage that could occur during transport. On the flap of postal bags we find an adhesive strip, which keeps the envelope firmly closed throughout transport.

TIP: Some postal bags contain a second adhesive strip, which the client can use after opening the envelope for returns.

Two adhesive strips on the flap: FlexiPAK 30x8x43+11 brown

FlexiPAK Postal bags

You can find postal bags on our e-shop under the trade name FlexiPAK. We offer them in several formats with widths from 26 to 36 centimeters and depths of 5 and 11 centimeters in both white and brown colors. You can safely place documents and items of A4, A3 and even larger formats in them.

They differ from classic envelopes by their wide cross bottom
Practical packaging for e-shops and shipment distribution, cost-effective alternative to boxes
You can safely place A4, A3 and even larger formats in the envelopes
Made from durable kraft paper
Firmly closed with one adhesive strip on the flap
Second adhesive strip can be used by the client for returns
Resistance to damage that could occur during transport
Unprinted and with custom print
Fast shipping, unprinted bags within 24 hours
Color white / brown
Purchase from as few as 100 pieces

How to determine the correct size of shipping envelope?

For all envelopes we list sizes in cm in the order width, depth, height. The last dimension next to height is the flap dimension (usually 5 cm), on which there is an adhesive strip for easy closure of the envelope. The flap is folded over the top edge of the envelope, the resulting envelope size is width x height in cm. Envelope depth means the dimension of the cross bottom. The wide bottom is a great advantage of our shipping envelopes, allowing you to place even larger items and documents in the envelope.

How to find out which envelope size you need?

First, it's advisable to measure the contents and choose the appropriate size based on this data. Always allow for a margin for easy insertion of contents, which must be smaller than the envelope dimension we list in the description. At the same time, select an envelope so that the inserted goods don't have too much space, to prevent movement of internal contents during transport, which could cause damage to the envelope.

Postal bag dimensions

width x depth (bottom) x height + flap (dimensions in cm)

FlexiPAK 26x7x41+5 brown
FlexiPAK 26x7x41+5 white
FlexiPAK 30x8x43+5 brown
FlexiPAK 30x8x43+11 brown
FlexiPAK 30x8x43+5 white
FlexiPAK 36x10x56+5 brown
FlexiPAK 36x10x56+5 white

How can shipping envelopes be closed?

All our FlexiPAK envelopes are equipped with an adhesive strip on the flap. Some types of envelopes even contain an extended flap with two adhesive strips. The second adhesive strip then serves the customer for potential returns.

Remember that the shipment should be packaged so that it doesn't get damaged during transport. FlexiPAK postal bags are made from kraft paper, which is manufactured from recycled or primary fiber. This type of paper is characterized by high resistance to mechanical damage and high tensile strength.

Postal envelope bottom — *wide cross bottom is an advantage over classic postal envelopes*

Printing of postal bags

All envelope sizes in both colors can be printed with silkscreen, flexography and full-color digital print.

Silkscreen – highest quality sharp print

printing with Pantone spot colors (1 – 6 colors) or - full color in CMYK or CMYK with white underprint for better coverage
suitable for quantities 100 - 1,000 pieces

Flexography – cost-effective printing of postal bags

print colors: 1 or 2 colors (without overprinting)
suitable for quantities 500 - 30,000 pieces

Digital print – fast printing of multi-color motifs

print colors: CMYK
suitable for quantities 100 - 10,000 pieces

Price is a major advantage of postal bags

Compared to boxes or other packaging, postal bags have the best price-to-performance ratio. They are cheap, strong, opaque and can be sealed directly using an adhesive strip. In the period 2022 / 2023, we offer significant introductory prices on this range of bags.

Postal bag prices from 8.10 CZK/piece.

Orders from 100 pieces
Volume discounts

How to order paper postal bags?

If you run an e-shop or are professionally involved in courier services, these envelopes - postal bags - should become an integral part of your warehouse. They are also suitable for companies and individuals for sending bulky shipments and documents. Even a whole stack of invoices for accounting, a catalog or clothes can fit in them. You can order paper postal bags just like all other paper bags on our e-shop.

Postal bags and shipping envelopes

Key Points