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STORM TRADING GROUP A3 Bubble-Lined Padded Envelopes, 100 Pack

STORM TRADING GROUP A3 Bubble-Lined Padded Envelopes are a pack of 100 white paper mailers measuring 340x445mm. Their bubble lining and self-seal closure suit posting items that need some cushioning without a separate wrap layer.

At a glance

  • Bubble lining runs around the inside of the envelope, according to the listing.
  • Peel-and-seal adhesive closure is described as self-sealing when pressed.
  • White paper exterior and a pack of 100 are specified.
Price
£26.56Save 15%

Reference price: £31.25

Price checked: 14 Nov 2026

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Often bought together

Pros and cons

Pros

  • A 100-pack provides a consistent supply for regular mailing.
  • The self-seal strip avoids needing separate envelope adhesive.
  • Bubble lining adds cushioning within the mailer, rather than requiring a separate lining step.

Technical specifications

12 specifications
Identity
BrandSTORM TRADING GROUP
Pack quantity100
Size and appearance
Listed size340x445mm
Dimensions44.5L x 34W centimetres
ColourWhite
ShapeRectangular
Materials and protection
Material listedPaper
Paper descriptionManufactured from thick FSC paper
LiningBubble lined
Use and closure
Closure typeSelf-Seal
Listed useGeneral Use
Listed special featuresLightweight, Padded, Self Seal

What to know before buying

  • The stated dimensions are envelope dimensions, not confirmed usable internal space. Allow room for the item and the padded lining when choosing what to post. The listing describes the paper as FSC and recyclable, but does not specify a certification number or recycling arrangements. The low-postage-cost claim is not accompanied by an envelope weight.

Who is it for?

A good fit for

  • People mailing larger flat or moderately bulky items that benefit from padded packaging.
  • Small businesses or home offices that use white self-seal mailers in volume.

Less suited to

  • Anyone who needs confirmed internal capacity, envelope weight or a stated postal-size classification before buying.

Customer reviews on Amazon

5 / 5 · 8 ratings
  • 5 stars100%100%
  • 4 stars0%0%
  • 3 stars0%0%
  • 2 stars0%0%
  • 1 star0%0%

The available aggregate ratings are uniformly positive, but the sample is small and no written customer feedback is supplied. This indicates positive ratings in that limited set, but does not establish what buyers liked or how well the envelopes performed in transit.

Frequently asked questions

How many envelopes are included?

The listing specifies 100 envelopes.

What size are these padded envelopes?

The stated size is 340x445mm. The listing also gives dimensions of 44.5L x 34W centimetres. Usable internal capacity is not stated.

How do they close?

They have a self-seal peel-and-seal strip. The listing says to press the adhesive strip to seal.

Are these suitable for fragile items?

They have bubble lining intended to add cushioning, but the listing does not specify a protection rating. Consider additional packaging for items needing greater protection.

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