Ideal for e-commerce businesses, fulfillment centers, and shipping departments that require dependable, cost-effective mailing solutions. These 9 x 12" Ship-Lite® envelopes are engineered for small to medium-sized parcels, offering six times the strength of standard paper envelopes while maintaining lightweight shipping profiles that reduce postage costs.
Best For
How to choose
Specs at a Glance
| Material | 26 lb. Reinforced Paper with Mesh Screen Poly Fibers |
| Dimensions | 9 x 12 inches |
| Closure Type | Self-Seal (Press and Seal) |
| Color | White |
| Recyclable | Yes |
Common Use Cases
- E-commerce order fulfillment and product shipping Direct mail marketing campaigns and promotional materials Document protection and secure business correspondence Sample distribution and product sampling programs Lightweight parcel shipping for reduced postage expenses
What You'll Receive
- 1 case of 100 Ship-Lite® flat envelopes (9 x 12 inches)
Shipping & Packaging
Frequently Asked Questions
Ship-Lite® envelopes are six times stronger than traditional paper envelopes due to their reinforced 26 lb. paper construction combined with embedded mesh screen poly fibers. This durability significantly reduces damage during handling, transit, and sorting while maintaining lightweight profiles for cost-effective shipping.
Yes. These self-seal Ship-Lite® envelopes meet USPS, UPS, and FedEx shipping requirements and standards. The moisture-resistant construction and secure self-adhesive closure ensure your shipments comply with carrier handling protocols and maintain package integrity throughout transit.
The self-seal closure (press-and-seal) eliminates the need for tape, reducing packaging time and labor costs. It creates a uniform, professional seal that's immediately recognizable as secure, faster to apply, and provides consistent sealing performance without tape residue or application inconsistencies.
Yes. The reinforced paper construction with poly fiber mesh provides moisture resistance, protecting contents from humidity, water exposure, and environmental moisture during storage and shipping. This is especially valuable for sensitive documents, electronics, and products requiring climate protection.
Technical Specifications
| Closure Type | Self-Seal (Press and Seal) |
| Recyclable | Yes |
| Color | White |
| Strength / Material | 26 lb. Reinforced Paper |
| Dimensions (Internal) | 9" × 12" (L × W × H) |
Shipping Information
Outer Carton Dimensions
9" × 12" (L × W × H)
Unit of Measure
CASE
Qty Per Shipping Unit
100 PER CASE
LTL Freight Class
Class 78
Delivery Method
Shown at checkout
Processing and delivery timelines vary by product, warehouse, order size, and destination. Freight-sensitive or oversized items may require LTL delivery or a custom quote before shipment.
Checkout shows available shipping options for the selected SKU and quantity. Use the shipping and refund policy links for current policy details before ordering.
For larger, recurring, freight-sensitive, or mixed-SKU orders, send the SKU or product link, quantity, delivery ZIP code, receiving notes, and timing to support@packrift.com.
ORDER SUPPORT
Product Support
Specs, case quantities, and availability are listed on each product page. For bulk, mixed-SKU, or LTL freight orders, email support@packrift.com with the SKU, quantity, and delivery ZIP.
Use product support for fit, larger or recurring order, return, or order-issue questions. When price and Add to Cart are shown, checkout remains the direct ordering path.
Need a sample, fit check, or substitution review? Contact product support with the SKU, selected option, order quantity, and use case. Support will confirm the available path for that item.
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9x12" Reinforced Ship-Lite Self-Seal Mailers - 6X Stronger, Case of 100
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