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Securely shipping documents and small items requires reliable packaging. Clasp mailing envelopes offer a durable and reusable solution for various mailing needs. Selecting the right size, material, and closure type ensures your contents arrive safely and professionally.
Durable 28LB Manilla Envelopes: SUNEE's envelops crafted from premium 28-pound kraft paper, these manilla envelopes are stronger than standard letter envelopes, resisting tears and wear in daily mailing envelopes use
Clasp Mailing Envelopes: SUNEE's 9x12 Manila envelopes, have metal clasps, reinforced eyelets & gummed seals. Ensuring the security and durability of your mail in a completely sealed environment
20 Pack Envelopes: You will receive 20 of our envelopes letter size, perfect for small offices, home filing, and bulk mailing envelopes, helping you organize and ship with ease
Print-Ready Surface for Addressing: The smooth, blank surface of these clasp manila envelopes works perfectly with most inkjet and laser printers, ideal for printing return addresses or shipping labels
Ideal for Everyday Filing & Mailing: These mailing envelopes are excellent for sending catalogs, magazines, photos, brochures, and other flat documents; a versatile solution for home and office use
Durable Envelopes: SUNEE clasp envelopes are made of sturdy 28 lb brown kraft paper. The high-quality paper is tear-resistant and durable, standing up to normal postal wear and tear without damage
Clasp Mailing Envelopes: SUNEE's 9x12 Manila envelopes, have metal clasps, reinforced eyelets & gummed seals. Ensuring the security and durability of your mail in a completely sealed environment
100 Pack Envelopes: You will receive 100 of our brown kraft envelopes, sufficient to meet your needs. These perfect envelopes are ideal for use at home, office, school, and more
Privacy Protection and Printing: The 9x12 envelopes are completely opaque, with the brown kraft paper material ensuring the privacy of the contents. The high-quality brown envelopes have a blank surface, and the kraft envelopes can be reused multiple...
Versatile Use: SUNEE clasp envelopes are ideal for mailing catalogs, magazines, documents, direct mail, paperwork, letters, invitations, photos, promotional materials, brochures, and more
Quality Park 9x12 clasp envelopes serve double duty for sorting or mailing; heavy-duty kraft envelopes have double prong metal clasps, reinforced eyelets & gummed seals; great for home, office, school
These sturdy large envelopes are manufactured from heavyweight 28 lb. brown kraft envelope stock for extra protection in mailing, storage and handling
Gummed seal envelopes have a thick strip of adhesive activated by moisture; use an envelope moistener for a strong, sanitary seal
9 x 12 mailing envelopes are perfect for sending large lay-flat items without folds or creases; perfect for contracts, catalogs, registration packets, 8 x 10 photos and more
An excellent value; get 100 classic brown kraft 9x12 envelopes at a stock-up price
Clasp Envelopes 10 x 13: This set contains 20 packs of reusable professional envelopes measuring 10 x 13 inches, packaged in a sturdy box for easy storage and transportation
Multi-purpose: Manila envelopes 10 x 13 with clasp are made of FSC-certified paper, and perfect for mailing larger size documents, manuscripts, announcement files, crafts, photographs, books, magazines and so on
Safe Storage: All large mailing envelopes are packaged in a firm box to prevent shipping damage and are easy to store
Double Sealing: The yellow envelope is made from 100 gsm kraft paper, featuring tear resistance; it's reusable and durable with a metal clasp, reinforced eyelets, and a moisture-activated gummed seal on the envelope flap
Stay Security: Brown envelopes 10x13 protect the privacy of your contents; double metal clasps and moisture-activated adhesive seals keep scripts, photos, certificates or other items secure whether they are shipped in bulk or stored; ideal for work or...
Designed for repeated use, double prong metal clasp is durable and eyelets are reinforced.
Perfect for everyday home and business use, Quality Park's clasp envelopes are constructed from extra heavy-duty 32 lb. brown Kraft stock designed to give contents extra protection during storage and handling.
In addition to the clasp closure, these Quality Park envelopes have a moisture activated secure seal with deep Gumming on the flap to create a permanent seal.
Great size for mailing and storing over-sized documents flat when folding is undesirable.
Conveniently packed in 100 count to reduce frequency of purchasing.
Last update on 2026-07-10 / Affiliate links / Images from Amazon Product Advertising API
How to Choose the Best Clasp Mailing Envelopes
Size Matters
Consider the dimensions of the items you'll be shipping. Measure your contents carefully and choose an envelope that provides a snug fit without being too tight, allowing for easy insertion and removal. It's often helpful to have a slightly larger envelope than your item to accommodate padding.
Material Strength
Envelopes are typically made from paper or cardstock. For heavier items or documents that need extra protection, opt for heavier-weight paper or cardstock envelopes. Consider moisture resistance if you anticipate shipping in damp conditions.
Closure Type
Clasp envelopes feature a metal clasp and a flap, offering a secure and reusable closure. Ensure the clasp is sturdy and the flap folds over it correctly. Some clasps are reinforced for added durability. This type of closure is ideal for items that will be mailed multiple times or need to be opened and resealed.
Frequently Asked Questions
What is the main advantage of clasp mailing envelopes?
The primary advantage is their secure and reusable closure system. The metal clasp combined with the flap ensures contents remain inside during transit and allows for easy opening and resealing.
Are clasp envelopes suitable for heavy items?
Yes, many clasp envelopes are made from durable cardstock or heavy-weight paper, making them suitable for mailing heavier documents or small, non-fragile items. Always check the material and weight capacity if available.
Can clasp envelopes be used for international shipping?
Clasp envelopes are generally suitable for international shipping as long as they meet postal regulations. Their durability helps protect contents during longer transit times.
How do I choose the right size clasp envelope?
Measure the items you intend to mail and select an envelope that is slightly larger to allow for easy insertion and potential padding. Avoid envelopes that are too large, as this can lead to shifting and damage.
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