--- product_id: 214092234 title: "KKBESTPACK Black Poly Mailers 12x15.5 in, Shipping Bags, 100 Pcs | Shipping bags for clothes and mailing bags for packing shirts, hoodies, and apparel." brand: "kkbestpack" price: "¥9282" currency: JPY in_stock: true reviews_count: 13 url: https://www.desertcart.jp/products/214092234-kkbestpack-black-poly-mailers-12x15-5-in-shipping-bags-100 store_origin: JP region: Japan --- # Waterproof polyethylene 12x15.5 in perfect fit Secure self-adhesive seal KKBESTPACK Black Poly Mailers 12x15.5 in, Shipping Bags, 100 Pcs | Shipping bags for clothes and mailing bags for packing shirts, hoodies, and apparel. **Brand:** kkbestpack **Price:** ¥9282 **Availability:** ✅ In Stock ## Summary > 📦 Seal the deal with style and speed! ## Quick Answers - **What is this?** KKBESTPACK Black Poly Mailers 12x15.5 in, Shipping Bags, 100 Pcs | Shipping bags for clothes and mailing bags for packing shirts, hoodies, and apparel. by kkbestpack - **How much does it cost?** ¥9282 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/214092234-kkbestpack-black-poly-mailers-12x15-5-in-shipping-bags-100) ## Best For - kkbestpack enthusiasts ## Why This Product - Trusted kkbestpack brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Sleek Black Design:** Stand out with professional, discreet black mailers that elevate your brand. - • **Durable & Waterproof:** Polyethylene material protects contents from moisture and damage. - • **Effortless Seal & Ship:** Peel, press, and go—no tape needed for fast, secure packing. - • **Bulk Ready for Business:** 100-pack volume keeps your shipping game strong and consistent. - • **Optimized Size for Apparel:** Ideal 12x15.5 inch dimensions fit clothing and flexible items perfectly. ## Overview KKBESTPACK Black Poly Mailers are 12x15.5 inch waterproof polyethylene shipping bags designed for clothing and non-fragile items. Featuring a secure self-adhesive closure, these 100-pack mailers combine durability with sleek black aesthetics, making them a top choice for small businesses seeking efficient, professional packaging solutions. ## Description KKBESTPACK black plastic mailers are shipping envelopes for clothing and other non-fragile items that fit the selected 12x15.5 in dimensions. This variation includes 100 Pcs. The mailer bags use a covered adhesive strip: remove the liner, fold the flap, and press across it. Add separate packing material or a box for rigid, sharp, or breakable contents. ## Features - CLOTHING SHIPPING BAGS: Use these mailer bags for clothing and other non-fragile items that fit the selected dimensions. - ADHESIVE CLOSURE: These poly shipping bags use a covered adhesive strip; remove the liner, fold the flap, and press across it. - SIZE AND QUANTITY: This variation includes 100 black 12x15.5 in mailing bags; review the dimensions and quantity before packing. - PLASTIC MAILING ENVELOPES: Use for flexible, non-fragile contents; add separate packing material or a box for rigid, sharp, or breakable items. - SHIPPING BAGS FOR SMALL BUSINESS: Use for packing clothing and other non-fragile items that fit the selected size. ## Technical Specifications | Specification | Value | |---------------|-------| | Additional Features | Self-Adhesive Closure, Waterproof | | Asin | B0897NH6P6 | | Best Sellers Rank | #732 in Office Products (See Top 100 in Office Products) #7 in Envelope Mailers | | Brand Name | KKBESTPACK | | Closure Type | Self-Seal | | Color | Black | | Customer Reviews | 4.7 4.7 out of 5 stars (3,179) 4.7 out of 5 stars | | Item Dimensions L X W | 15.5"L x 12"W | | Item Shape | Rectangular | | Manufacturer | KKBESTPACK | | Material Type | Polyethylene (PE) | | Number Of Items | 100 | | Occasion | Graduation | | Occasion Type | Graduation | | Size | 12" x 15.5" 100pcs | | Style | 100 PCS | | Unit Count | 100 Count | | Upc | 810024920822 | ## Product Details - **Brand:** KKBESTPACK - **Closure Type:** Self-Seal - **Color:** Black - **Material:** Polyethylene (PE) - **Occasion:** Graduation ## Images ![KKBESTPACK Black Poly Mailers 12x15.5 in, Shipping Bags, 100 Pcs | Shipping bags for clothes and mailing bags for packing shirts, hoodies, and apparel. - Image 1](https://m.media-amazon.com/images/I/41YDvuI79yL.jpg) ## Available Options This product comes in different **Color, Size** options. ## Questions & Answers **Q: Thickness in mil is not listed. What is it?** A: A piece of paper. **Q: Is this size good for hoodies 2xl?** A: It's pretty likely you could! I just barely used it to ship off a medium puffy nike jacket and was able to squish it down to size. **Q: Will a mens medium puffer jacket with a hoodie fit (polo ralph lauren to be exact)?** A: This question does not tell us the size of who the puffer jacket needs to fit? Please try asking with the correct details. **Q: How thick a book will fit in side it?** A: Very thick. They're big bags. You can fit multiple books in there. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Mailers *by on Reviewed in the United States June 28, 2026* These are quality poly mailers. I use them to ship items for my buisness. Nice size. Thick plastic. Strong adhesive seal. Not transparent. Good value/quantity/quality for price. ### ⭐⭐⭐⭐⭐ Thickness *by on Reviewed in the United States July 20, 2026* The size is perfect for shipping shirts and small items I need to ship. Its easy to use and easy to store. Thick and not easily destroyed in the mailing process. ### ⭐⭐⭐⭐⭐ Good mailers *by on Reviewed in the United States July 31, 2026* Received mailers as listed. They feel a little thinner than the bubble poly mailers I used to get from Dollar Tree but so far I used these to ship out clothes, textbooks, and even a pair of heels still in the box. For smaller items just fold the excess poly mailer over. No complaints from people I've shipped to. Will buy again. ## Frequently Bought Together - KKBESTPACK 100 Pcs 12x15.5 Poly Mailer Envelopes Shipping Bags Self Adhesive Waterproof Bags (Black), 12 x 15.5 - KKBESTPACK 100 Large Poly Mailers 10x13 Shipping Bags for Small Business – Self Sealing Package Envelopes (10 x 13 Pack of 100, Black) --- ## 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.jp/products/214092234-kkbestpack-black-poly-mailers-12x15-5-in-shipping-bags-100](https://www.desertcart.jp/products/214092234-kkbestpack-black-poly-mailers-12x15-5-in-shipping-bags-100) --- *Product available on Desertcart Japan* *Store origin: JP* *Last updated: 2026-08-31*