Ideal for shipping departments and e-commerce businesses requiring reliable, compliant mailing solutions for First Class mail. The 10 x 13" format accommodates documents, photos, and lightweight products while the Tyvek® construction ensures documents arrive protected from puncture, tears, and moisture damage, critical for industries managing sensitive paperwork.
Best For
How to Choose the Right Packaging
Specs at a Glance
| Material | 14 lb. Olefin (DuPont Tyvek®) |
| Dimensions | 10 x 13 inches |
| Closure Type | Self-Seal / Redi-Strip |
| Quantity Per Case | 100 Envelopes |
| Recyclable | Yes |
Common Use Cases
- First Class mail and USPS-compliant shipping Document protection for legal, financial, and medical records E-commerce order fulfillment with lightweight products Photo and print distribution requiring moisture protection Business correspondence and promotional material mailing
What You'll Receive
- Case of 100 self-seal First Class Tyvek® flat envelopes (10 x 13 inches) Integrated adhesive strip for quick, reliable closure
Shipping & Packaging
Frequently Bought Together
Bundle & Save 5%Frequently Asked Questions
Yes. The First Class printed border design meets USPS requirements for First Class mail, enabling faster delivery, tracking, and signature confirmation options at competitive rates compared to Priority Mail.
Tyvek® olefin is ten times stronger than standard paper envelopes, offering puncture, tear, and moisture resistance. This protects contents during transit and storage, reducing damage claims and customer complaints.
The integrated Redi-Strip adhesive closure activates when pressed, no tape, water, or additional materials needed. Simply fold the flap and press firmly for a secure, tamper-evident seal that meets shipping standards.
Ideal for documents (8.5 x 11 inch paper), photos, certificates, lightweight merchandise, and samples up to standard First Class weight limits. The flat design prevents bending and protects contents from moisture and physical damage.
Technical Specifications
| Material | 14 lb. Olefin (DuPont Tyvek®) |
| Dimensions | 10 x 13 inches |
| Closure Type | Self-Seal / Redi-Strip |
| Quantity Per Case | 100 Envelopes |
| Recyclable | Yes |
| Color | White/Green |
| Strength / Material | 14 lb. Olefin |
| Dimensions (Internal) | 10"" × 13"" (L × W × H) |
Product Downloads
Shipping Information
Outer Carton Dimensions
14.25" × 11.5" × 3.75" (L × W × D)
Unit of Measure
CASE
Qty Per Shipping Unit
100 PER CASE
LTL Freight Class
Class 78
Carrier Eligibility
UPS Ground & Freight Eligible
TRUST & RELIABILITY
Product Support
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Buyer guides
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