--- product_id: 298700911 title: "Reli. Poly Mailers 12x15.5 | 500 Pcs Bulk | Shipping Envelopes | White Packaging Bags for Shipping | Non-Padded Polymailers, Self Sealing Mailing Bags for Clothing, Bulk (White)" brand: "reli." price: "631.87 DT" currency: TND in_stock: true reviews_count: 8 category: "Reli." url: https://www.desertcart.tn/products/298700911-reli-poly-mailers-12x15-5-500-pcs-bulk-shipping-envelopes store_origin: TN region: Tunisia --- # 500 pcs bulk pack Strong self-seal adhesive Tear-proof & moisture resistant Reli. Poly Mailers 12x15.5 | 500 Pcs Bulk | Shipping Envelopes | White Packaging Bags for Shipping | Non-Padded Polymailers, Self Sealing Mailing Bags for Clothing, Bulk (White) **Brand:** reli. **Price:** 631.87 DT **Availability:** ✅ In Stock ## Summary > 🚀 Ship with confidence, seal with style! ## Quick Answers - **What is this?** Reli. Poly Mailers 12x15.5 | 500 Pcs Bulk | Shipping Envelopes | White Packaging Bags for Shipping | Non-Padded Polymailers, Self Sealing Mailing Bags for Clothing, Bulk (White) by reli. - **How much does it cost?** 631.87 DT with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/298700911-reli-poly-mailers-12x15-5-500-pcs-bulk-shipping-envelopes) ## Best For - reli. enthusiasts ## Why This Product - Trusted reli. brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Privacy-First Design:** Opaque white exterior with dark lining keeps your contents confidential and professional. - • **Massive 500-Pack Bulk:** Never run out—ship smarter with a high-volume supply that keeps your business moving. - • **Secure Self-Sealing Closure:** Peel, seal, and ship—no tape needed, ensuring tamper-evident security every time. - • **Versatile Shipping Solution:** Perfect for clothing, blankets, and non-fragile items—streamline your packaging workflow. - • **Durable Tear-Resistant Build:** Protect your shipments from rain, dirt, and punctures with thick, glossy polyethylene. ## Overview Reli. Poly Mailers offer a premium bulk pack of 500 white, 12x15.5 inch shipping envelopes crafted from thick, tear-resistant polyethylene. Featuring a strong self-seal adhesive for tamper-evident closure and an opaque design for privacy, these mailers are ideal for securely shipping clothing and everyday non-fragile items while protecting contents from moisture and damage. ## Description Product description About Reli. Poly Mailers Value. Each Mega Pack case includes 500 Poly Mailers developed and distributed using Reli's global and domestic operations to enable premium quality, while maintaining wholesale quantity & prices. Quality. Each poly mailer is constructed from tear-resistant and waterproof materials. At 12" x 15.5" these bags are designed specifically to keep contents secure against moisture, tampering, and puncturing. Convenience. Reli. Poly Mailers are built for efficiency and convenience . Simply peel the strip on the top of the mailer to expose the strong adhesive for easy packing, and a secure seal. Our team works diligently to research every product and help simplify your life . Serving 1M+ customers and trusted for over 30 years, you can Rely on Reli. At a Glance 12" x 15.5" Inch 500 Mega Pack Tear-Resistant Waterproof Construction Premium Self Seal Special Features 500 Count - Mega Pack We are always working to provide our customers with wholesale quantity at incomparable prices. Our Mega Pack includes 500 Poly Mailers. Our Poly Mailers are manufactured out of premium tear-resistant materials to prevent punctures and facilitate secure transportation. Transport items safely with our waterproof construction that keeps out liquids / moisture and prevents your items from getting damaged by rain or snow. Each poly mailer is designed with a premium adhesive strip that can be peeled off to expose a strong seal for tamper-free security. About Reli. Reli. is a family-owned company built around strong values & putting the customer first . Our goal is to make your daily life easier so you can focus on what matters to you. Review: Mailers - A little thin compared to some mailers. But they work just fine! Review: great quality - We ship out approx. 30 orders a day that we use these bags for and we have never had a complaint yet from a customer saying that the package was opened because the adhesive wasn't sticky enough. We have gone through a couple thousand of these bags. ## Features - Bulk Quantity: Includes 500 white poly mailers sized at 12x15.5 inches, offering exceptional quality and value for your shipping needs. - Tear-Proof Construction: Made of thick, tear-resistant polythlene material, our glossy white poly mailers ensure your contents remain protected from liquids, dirt, moisture & punctures during transit. Avoiding damage from rain or snow. - Strong Self Seal: Simply peel to expose strong adhesive for a tamper evident seal - no tape needed! Our mailer bags are incredibly versatile and suitable for non fragile items like clothing, blankets and more. - Privacy Guaranteed: With a white outer surface and dark inner lining, our poly bags offer an opaque design ensuring that the contents remain completely hidden from view during transit - Rely on Reli.:Convenient & Quality packaging / shipping bags for clothing and everyday items. Keep scrolling to choose from a range of sizes available for your specific shipping needs. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B08WRK3ZLR | | Additional Features | Self-seal, Tear Resistant, Waterproof | | Best Sellers Rank | #12,710 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #66 in Bulk Envelope Mailers | | Brand | Reli. | | Brand Name | Reli. | | Closure Type | Self-Seal | | Color | White (500 Pcs) | | Customer Reviews | 4.5 out of 5 stars 826 Reviews | | Item Dimensions L x W | 15.5"L x 12"W | | Item Shape | Rectangular | | Manufacturer | Reli | | Material | Plastic | | Material Type | Plastic | | Model Name | Poly Mailers 12 x 15.5" | | Number of Items | 500 | | Occasion | Everyday Mailing | | Occasion Type | Mailing | | Recommended Uses For Product | Mailing Bags, Poly Bags for Business, Shipping Bags for Clothing | | Size | 12" x 15.5" | 500 Pack | | Style | 14.5x19" | 500 Pack | White | | UPC | 606301121552 | | Unit Count | 500 Count | ## Product Details - **Brand:** Reli. - **Closure Type:** Self-Seal - **Color:** White (500 Pcs) - **Material:** Plastic - **Number of Items:** 500 ## Images ![Reli. Poly Mailers 12x15.5 | 500 Pcs Bulk | Shipping Envelopes | White Packaging Bags for Shipping | Non-Padded Polymailers, Self Sealing Mailing Bags for Clothing, Bulk (White) - Image 1](https://m.media-amazon.com/images/I/71IZMcAIYHL.jpg) ## Available Options This product comes in different **Number Of Items** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Mailers *by A***R on December 2, 2025* A little thin compared to some mailers. But they work just fine! ### ⭐⭐⭐⭐⭐ great quality *by K***R on October 29, 2025* We ship out approx. 30 orders a day that we use these bags for and we have never had a complaint yet from a customer saying that the package was opened because the adhesive wasn't sticky enough. We have gone through a couple thousand of these bags. ### ⭐⭐⭐⭐⭐ You get what you pay for *by A***R on May 18, 2023* These are thin and cheap feeling compared to other mailers I’ve used. However, I have shipped out several of these with clothing, and haven’t had a single complaint. They are lightweight and don’t add much to shipping costs. They aren’t as nice as others, but if you’re looking to keep your overhead low, this is a good option. ## Frequently Bought Together - Reli. Poly Mailers 12x15.5 | 500 Pcs Bulk | Shipping Envelopes | White Packaging Bags for Shipping | Non-Padded Polymailers, Self Sealing Mailing Bags for Clothing, Bulk (White) - KKBESTPACK 10x13 Poly Mailers Self Sealing Shipping Envelopes CPB68 Waterproof Postal Bags (White,10x13 Pack of 1000) --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.tn/products/298700911-reli-poly-mailers-12x15-5-500-pcs-bulk-shipping-envelopes](https://www.desertcart.tn/products/298700911-reli-poly-mailers-12x15-5-500-pcs-bulk-shipping-envelopes) --- *Product available on Desertcart Tunisia* *Store origin: TN* *Last updated: 2026-06-02*