LilTM envelope

Lil A3 Envelope (fits A4 and AusPost Large Envelope)

352 x 249 mm

Look no further for a large cardboard envelopes, the Lil A3 envelope mailers are perfect for calendars and artwork. These envelopes are better than bubble mailers – the corner stiffness of the A3 envelope cuts damage in transit. Online retailers report nearly 70% fewer returns and 25% faster packing. Perfect if you need sturdy large letter mailers for your e-commerce business.

$1.24 each excl GST

9737 in stock

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Looking for a large letter envelope to make best use of the AusPost Large envelope size limit of 360 x 260 x 20mm? The Lil A3 is a large letter mailer featured in our cardboard envelope range. This mailer is perfect for delivering A4 brochures, calendars, DVD’s, photos, photo frames and more through the postal system.  With its attractive ‘kraft’ finish customers will open this effective packaging to receive their products in the condition that they want them.  The A3 large letter envelopes are made from very stiff 450gsm / 570mic material, with specially designed folds to provide impact protection around the edges, to help minimise the risk of impact damage.  The envelope features our leading peel’n’seal / red tear-strip system for easy sealing and opening.  This large letter mailer and all of the products within our envelope range are 100% recyclable and using fully FSC® certified recycled material.

AusPost ‘Large envelope’ maximiser for cheap postal tariff mailings. Our sizes are extensively researched to get the snuggest fit – and the lowest cost mailing tariff.

This range was co-developed with one of the Internet’s largest retailers… so you might recognise our envelopes!

This Lil envelope is incredibly stiff yet with a total product thickness of only 450gsm / 570mic, this means that you can send items up to 23mm thick through the ‘large letter’ price tariff. A standard 6mm – 8mm thick bubble mailer would fail. The result being a potential £2 saved per item mailed.

Tired of returns and unhappy customers? These envelopes are better than bubble mailers – the corner stiffness of the A3 envelope cuts damage in transit.  Online retailers report nearly 70% fewer returns and 25% faster packing.

Struggling with storage space for your packaging? The easy stack design of the A3 envelope is the answer.

Your packaging is the first time that your customer will physically experience your product. Getting it right is your chance to make the best first impression. We help you do just that with our award winning range of Lil envelopes.

This brilliant, tough envelope is one of our best selling items for a reason. If you’re looking for sturdy and cost effective packaging for mailing A4 brochures, calendars, DVD’s, photo frames and more think of nothing else (rather than cheap envelopes that fall apart, leave your items damaged and your customers dissatisfied!). Go on…burst the bubble!

Additional information

Weight 88 g
Internal Width MM


Internal Length MM


Internal Width Inches


Internal Length Inches


Flap Type

Hotmelt Peel & Seal with red rip strip opening

Quantity per Box/Pack


Quantity per pallet




Item Thickness

450gsm / 570mic

Glue Seams

External seams

Item Weight (g)


Pallet Size

100x120x165cm / 40x48x65″


70% PEFC certified

fits large letter

fits large letter

70% PEFC Material

70% PEFC material

100% Recyclable

100% recyclable

supplied form boxed

supplied form boxed

peel 'n' seel

peel 'n' seal

easy open tear strip

easy open tear strip