Mailer

Shipping Envelopes: Types, Sizes, Best Uses

Envelopes are cheaper and lighter than boxes for flat or semi-flat items — documents, small books, clothing, fabric, and jewelry. Multiple types serve different protection needs.

Types of Shipping Envelopes

Padded bubble envelopes

Kraft exterior with bubble lining.

Best for: Small electronics, jewelry, books

Tyvek envelopes

Synthetic plastic fiber — tear-resistant, water-resistant.

Best for: Important documents, rigid flat items

Rigid mailers

Heavy cardboard to prevent bending.

Best for: Photos, artwork, documents that can't bend

Kraft paper envelopes

Basic plain kraft envelopes.

Best for: Standard documents, non-fragile flat items

Poly mailers

Plastic mailers (covered in separate guide).

Best for: Clothing, soft goods

Practical Tips

  • •Padded bubble envelopes are the most versatile for small items
  • •Tyvek's tear resistance makes it ideal for important/valuable documents
  • •Rigid mailers prevent bending — crucial for flat artwork and photos
  • •Standard envelope sizes: #000 (4×8), #00 (5×10), #0 (6×10), #2 (8.5×12), #5 (10.5×16)
  • •Amazon Basics brand envelopes are typically cheapest per-unit in bulk

Frequently asked questions

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