Envelopes & Mailers

SupplyLand carries bubble mailers, poly mailers, and padded envelopes in bulk for e-commerce sellers, fulfillment operations, and businesses that ship soft goods, documents, and small products daily. Our kraft bubble mailers combine a kraft paper exterior with a bubble-cushioned interior for lightweight protection of electronics, jewelry, cosmetics, and media, no box required. Poly bubble mailers swap the paper exterior for a water-resistant poly shell, better suited for items that might encounter moisture in transit. For clothing, apparel, and flexible goods that don't need cushioning, poly mailer bags provide a lightweight, tear-resistant shipping envelope at the lowest possible cost per unit.

Beyond standard bubble and poly mailers, SupplyLand stocks a full range of specialty shipping envelopes. Glamour bubble mailers and colored poly mailers add branding impact at the point of delivery without custom printing costs. Expansion poly mailers have a gusseted bottom that expands to fit thicker items like folded garments and boxed accessories. Tyvek envelopes offer tear- and water-resistant document protection for contracts, legal filings, and engineering drawings. Business envelopes and catalog envelopes round out the selection for standard office mailing needs. Pair with labels and packing list envelopes for a complete outbound mail station.

What is the difference between kraft bubble mailers and poly bubble mailers?

Kraft bubble mailers have a natural kraft paper exterior with a bubble cushion interior liner. They provide good protection and a professional, neutral appearance that works well for retail, subscription boxes, and any brand wanting a more natural packaging aesthetic. The trade-off is that kraft paper is not water-resistant. Mailers left on a doorstep in rain can absorb moisture and soften. Poly bubble mailers use a water-resistant polyethylene exterior that sheds moisture and handles rough carrier sorting better. They are the better choice for items that must be protected from moisture, for higher-volume e-commerce operations prioritizing durability, and for destinations with variable weather exposure. Both provide equivalent interior cushioning for the same bubble spec.

When should I use a poly mailer instead of a bubble mailer?

Use poly mailer bags when your item does not need cushioning, like apparel, soft goods, fabric accessories, folded textiles, and flexible items that will not break or scratch in a lightweight envelope. Poly mailers are significantly lighter than bubble mailers, which reduces dimensional weight charges on carrier invoices for high-volume shippers. They are also the most economical mailer per unit, making them the standard choice for clothing e-commerce. Use a bubble mailer when your item is rigid, fragile, or prone to scratching, electronics, jewelry, cosmetics, books, and similar products benefit from the interior cushion layer. For items that are thicker than a standard mailer can accommodate, expansion poly mailers offer a gusseted bottom that opens up to fit bulkier contents.

What bubble mailer sizes does SupplyLand carry?

SupplyLand carries bubble mailers in a full size range from small 4" x 7" envelopes for single jewelry pieces or small electronics up to 14.25" x 20" large mailers for books, flat-pack apparel, and boxed products. Common sizes stocked include 6" x 9" for CDs, DVDs, and small accessories; 8.5" x 11" for documents, photos, and media; and 10.5" x 15" for clothing items and notebooks. Size is always listed as interior usable dimensions. Measure your product flat and match to the closest size with a half-inch to one-inch margin on each side for the self-seal closure to lay flat. Browse kraft bubble mailers and poly bubble mailers by size to find the right fit.

What are Tyvek envelopes used for?

Tyvek envelopes are made from DuPont Tyvek, a synthetic material that is simultaneously tear-resistant, puncture-resistant, and water-resistant while remaining lightweight. They are the standard choice for important documents that need additional protection like contracts, legal filings, architectural drawings, medical records, passports, and similar materials where tearing or moisture damage would be consequential. Tyvek envelopes are USPS-compatible for Priority Mail and Express Mail formats and are frequently used in legal, financial, real estate, and government mailing applications. They are not cushioned, so they are not the right choice for fragile items.

What are glamour mailers and colored poly mailers used for?

Glamour bubble mailers and colored poly mailers are used when the unboxing experience is part of the brand. A metallic or colored mailer arriving at a customer's door stands out from the sea of standard kraft and white envelopes, creating a brand impression before the package is even opened. This is particularly valuable for subscription box services, boutique e-commerce brands, cosmetics, jewelry, and lifestyle products where the packaging is part of the product experience. Glamour mailers provide the same functional protection as standard bubble mailers, but the difference is entirely in the exterior finish. Colored poly mailers serve the same purpose for apparel and soft goods shippers who want brand color at minimal added cost.