--- product_id: 289455247 title: "12x15.5 Inches 100% Biodegradable D2W Poly Mailers, 50pcs Black Compostable Envelopes Shipping Bags, Eco Friendly Waterproof Stretchable Self Sealing Mailing Bags" brand: "ywduoying" price: "฿2421" currency: THB in_stock: true reviews_count: 11 category: "Ywduoying" url: https://www.desertcart.co.th/products/289455247-12x15-5-inches-100-biodegradable-d2w-poly-mailers-50pcs-black store_origin: TH region: Thailand --- # durable & stretchable, doubles length 100% biodegradable in 3-6 months waterproof & self-sealing 12x15.5 Inches 100% Biodegradable D2W Poly Mailers, 50pcs Black Compostable Envelopes Shipping Bags, Eco Friendly Waterproof Stretchable Self Sealing Mailing Bags **Brand:** ywduoying **Price:** ฿2421 **Availability:** ✅ In Stock ## Summary > ♻️ Ship Smart, Ship Green – Because Your Brand Deserves Better! ## Quick Answers - **What is this?** 12x15.5 Inches 100% Biodegradable D2W Poly Mailers, 50pcs Black Compostable Envelopes Shipping Bags, Eco Friendly Waterproof Stretchable Self Sealing Mailing Bags by ywduoying - **How much does it cost?** ฿2421 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.co.th](https://www.desertcart.co.th/products/289455247-12x15-5-inches-100-biodegradable-d2w-poly-mailers-50pcs-black) ## Best For - ywduoying enthusiasts ## Why This Product - Trusted ywduoying brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Seal the Deal:** Strong self-sealing adhesive guarantees tamper-proof packaging with a sleek black finish. - • **Built to Endure:** Stretchable and puncture-resistant design ensures your shipments arrive intact every time. - • **Brand with Purpose:** Showcase your commitment to sustainability and impress customers with eco-friendly packaging. - • **Eco-Impact Champion:** Breaks down fully in home or commercial compost within 3-6 months, leaving zero harmful residue. - • **Perfect Fit for Professionals:** Generous 12x15.5 inch size ideal for clothes, documents, gifts, and more. ## Overview These 12x15.5 inch black poly mailers are 100% biodegradable using innovative d2w technology, breaking down in 3-6 months in compost or within 15-18 months in landfills. Waterproof, stretchable, and self-sealing, they provide durable, tamper-proof protection for a variety of non-breakable items. Perfect for eco-conscious businesses aiming to elevate their brand image while reducing environmental impact. ## Description 12x15.5 Inches 100% Biodegradable D2W Poly Mailers, 50pcs Black Compostable Envelopes Shipping Bags, Eco Friendly Waterproof Stretchable Self Sealing Mailing Bags Review: Super sturdy! - These are great! Nice heavy plastic and good adhesive seals them well. Review: Eco Friendly and Practical - These poly mailers have been working great for shipping orders. The size is perfect, they hold up well, and I really like that they’re biodegradable. Customers have appreciated the eco friendly effort, which is a big plus for me. ## Features - 100% BIODEGRADABLE MAILER - I’m a 100% Compostable Mailer made from d2w raw material extracted from gum, which can breaks down in any home or commercial compost in 3-6 months! I'll transform into fertilizers completely with no harmful residue. Within 15-18 months in landfills, I'll disappear even if you don't compost me. - 100% SAFETY - The biodegradable mailer has passed the ecotoxicity test, and can be in contact with food for a long time. It does not contain organic chlorine or heavy metals. - PERFECT SIZE - 12" x 15.5" PACKAGING BAGS FOR SHIPPING - Suitable for Clothes, Documents, Gifts, Books, Accessories and other Non Breakable Items. - DURABLE STRETCHY & STRONG - It can withstand many anti puncture experiments, and is very durable. Use destructive hot melt adhesive, can only open the mailers by destroying it,It can also stretch out double the length and has stronger toughness. The biodegradeble d2w mailer with handle is your best choice in express packaging. - BETTER BRAND IMAGE: Your customers will be surprised and relieved to open a shipping bags of Eco friendly materials. Using biodegradable express bags will make your customers feel your sense of social responsibility and high quality of the brand, thus shorten the distance between enterprises and customers and obtaining more orders. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B08XWZL3XR | | Additional Features | Waterproof | | Best Sellers Rank | #112,543 in Office Products ( See Top 100 in Office Products ) #658 in Envelope Mailers | | Brand Name | ywduoying | | Closure Type | Self-Seal | | Color | black-1 | | Customer Reviews | 4.8 4.8 out of 5 stars (408) | | Item Dimensions L x W | 15.5"L x 12"W | | Item Shape | Rectangular | | Manufacturer | ywduoying | | Number of Items | 50 | | Occasion | everyday mailing | | Size | 12x15.5 | | Style | Poly | | UPC | 735329808074 | | Unit Count | 50 Count | ## Product Details - **Brand:** ywduoying - **Closure Type:** Self-Seal - **Color:** black-1 - **Number of Items:** 50 - **Occasion:** everyday mailing ## Images ![12x15.5 Inches 100% Biodegradable D2W Poly Mailers, 50pcs Black Compostable Envelopes Shipping Bags, Eco Friendly Waterproof Stretchable Self Sealing Mailing Bags - Image 1](https://m.media-amazon.com/images/I/51uk5tQLTZL.jpg) ## Available Options This product comes in different **Color** options. ## Questions & Answers **Q: What is the thickness of the bag in mil?** A: They are not particularly thin, Average and they are as durable as any ive used. Customers love them **Q: How How many tshirt could you fit in a bag? many tshirt could you fit in a bag?** A: Depending on size maybe 2 or three **Q: Can I use this to mail a shoe box without damaging the box?** A: I love this mailer! I would not use it for the purpose of mailing a shoe box. Shoe boxes vary in size and construction, and I don't think most would fit in this size. Further this light weight mailer is very durable, but would not offer protection against crushing or damage during shipping. **Q: Does this fit USPS standards?** A: I order this product in tropical leaves and had no problems with delivery. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Super sturdy! *by A***D on January 19, 2026* These are great! Nice heavy plastic and good adhesive seals them well. ### ⭐⭐⭐⭐⭐ Eco Friendly and Practical *by R***. on December 22, 2025* These poly mailers have been working great for shipping orders. The size is perfect, they hold up well, and I really like that they’re biodegradable. Customers have appreciated the eco friendly effort, which is a big plus for me. ### ⭐⭐⭐⭐⭐ Lovely good quality mailers! *by M***E on April 21, 2025* These are great! I absolutely love them. I love the handles on them and the gold thank you logo. The adhesive is strong. They are sold at a great price. 100% recommendation this product! ## Frequently Bought Together - 12x15.5 Inches 100% Biodegradable D2W Poly Mailers, 50pcs Black Compostable Envelopes Shipping Bags, Eco Friendly Waterproof Stretchable Self Sealing Mailing Bags - 10x13 inch Biodegradable Shipping Bags,50 Count Compostable Poly Mailers with Eco Friendly Packaging Envelopes Supplies Mailing Bags - 6x9 inch Biodegradable Poly Mailers,50 Count Compostable Shipping Bags with Eco Friendly Packaging Envelopes Supplies Mailing Bags --- ## 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.co.th/products/289455247-12x15-5-inches-100-biodegradable-d2w-poly-mailers-50pcs-black](https://www.desertcart.co.th/products/289455247-12x15-5-inches-100-biodegradable-d2w-poly-mailers-50pcs-black) --- *Product available on Desertcart Thailand* *Store origin: TH* *Last updated: 2026-04-23*