8x12 Thermal Bubble Mailers – #3 Foil Padded Envelopes Pack of 100
8x12 Thermal Bubble Mailers – #3 Foil Padded Envelopes is backordered and will ship as soon as it is back in stock.
Description
Description
Bulk 8x12 thermal bubble mailers, industry size #3 (8" x 12" outside, 8" x 11" usable): silver foil padded envelopes for short-transit shipments of temperature-sensitive items such as chocolates, supplements, cosmetics and small perishables packed with a gel pack. 100 mailers per case.
Specifications
- Outside dimensions: 8" x 12"
- Usable space: 8" x 11"
- Industry size: #3
- Pack quantity: 100 mailers per case
- Exterior: Reflective silver metallic foil
- Lining: Thermal bubble cushioning
What fits in an 8x12 thermal mailer
- A box of chocolates or candy up to about 6" x 9" and 1.5" thick, with a slim gel pack
- A few skincare, cosmetic or supplement items
- Small sample or tasting kits with an ice pack
Sizing tip: count the gel pack in the thickness, then add the thickness to the item's width and to its length; both totals have to fit inside the 8" x 11" usable space.
How a thermal mailer helps
The foil reflects radiant heat and the bubble layer slows heat transfer, which buys time in transit. It does not cool anything by itself: pack frozen gel packs, ship early in the week, and choose a delivery speed that fits the product.
8x12 vs. nearby sizes
- 6.5x10.5 #2 thermal mailers (6.5" x 10.5" usable): narrower, for single items.
- 10x10 #4 thermal mailers (10" x 10" usable): square, for wider boxed items.
- See all thermal mailer sizes.
FAQ
How long will it keep items cold?
That depends on the gel packs, transit time and outside temperature; the mailer slows warming but doesn't refrigerate. For heat-sensitive products, test a shipment in your own conditions first.
Why does an 8x12 mailer hold 8" x 11"?
The name is the outside size, the same way our poly bubble mailers are named. The seal flap takes up about 1" of the length, leaving 8" x 11" for your item.
How many come in a case?
100 mailers per case.
Why BulkMailerHQ
- Free U.S. shipping on bulk orders
- Ships fast from our US warehouse
- Volume discounts on case quantities
| Price Per Case | |||
| 1 case | 2–3 cases | 4–5 cases | 6+ cases |
| $59.99 | $58.19 | $56.99 | $55.19 |
Explore All Sizes
| OUTSIDE W x L | Size Image | QTY./ CASE | PRICE PER CASE | |||
| 1 case | 2–3 cases | 4–5 cases | 6+ cases | |||
| 6.5x11.5 |
|
100 | $54.99 | $53.34 | $52.24 | $50.59 |
| 6x7 |
|
100 | $49.99 | $48.49 | $47.49 | $45.99 |
| 10x11 |
|
100 | $62.99 | $61.10 | $59.84 | $57.95 |
| 11x16 |
|
50 | $64.99 | $63.04 | $61.74 | $59.79 |
| 12x18 |
|
50 | $69.99 | $67.89 | $66.49 | $64.39 |
| 15x18 |
|
50 | $73.99 | $71.77 | $70.29 | $68.07 |
| 18x23 |
|
50 | $78.99 | $76.62 | $75.04 | $72.67 |
| 24x21 |
|
50 | $139.99 | $135.79 | $132.99 | $128.79 |
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Bulk 8x12 thermal bubble mailers, industry size #3 (8" x 12" outside, 8" x 11" usable): silver foil padded envelopes for short-transit shipments of temperature-sensitive items such as chocolates, supplements, cosmetics and small perishables packed with a gel pack. 100 mailers per case.
Specifications
- Outside dimensions: 8" x 12"
- Usable space: 8" x 11"
- Industry size: #3
- Pack quantity: 100 mailers per case
- Exterior: Reflective silver metallic foil
- Lining: Thermal bubble cushioning
What fits in an 8x12 thermal mailer
- A box of chocolates or candy up to about 6" x 9" and 1.5" thick, with a slim gel pack
- A few skincare, cosmetic or supplement items
- Small sample or tasting kits with an ice pack
Sizing tip: count the gel pack in the thickness, then add the thickness to the item's width and to its length; both totals have to fit inside the 8" x 11" usable space.
How a thermal mailer helps
The foil reflects radiant heat and the bubble layer slows heat transfer, which buys time in transit. It does not cool anything by itself: pack frozen gel packs, ship early in the week, and choose a delivery speed that fits the product.
8x12 vs. nearby sizes
- 6.5x10.5 #2 thermal mailers (6.5" x 10.5" usable): narrower, for single items.
- 10x10 #4 thermal mailers (10" x 10" usable): square, for wider boxed items.
- See all thermal mailer sizes.
FAQ
How long will it keep items cold?
That depends on the gel packs, transit time and outside temperature; the mailer slows warming but doesn't refrigerate. For heat-sensitive products, test a shipment in your own conditions first.
Why does an 8x12 mailer hold 8" x 11"?
The name is the outside size, the same way our poly bubble mailers are named. The seal flap takes up about 1" of the length, leaving 8" x 11" for your item.
How many come in a case?
100 mailers per case.
Why BulkMailerHQ
- Free U.S. shipping on bulk orders
- Ships fast from our US warehouse
- Volume discounts on case quantities
Ordering 20+ cases or a pallet?
Tell us the sizes, colors, quantities and delivery ZIP code, and we'll send a fast, personalized quote. Under 20 cases? Order right here: case discounts up to 8% apply automatically.
