Product Specifications
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Material: Premium 2.85 mil heavy-duty co-extruded polyethylene plastic
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Dimensions: 12 inches Width x 15.5 inches Height (12" W x 15 1/2" H)
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Closure Type: High-tack, permanent peel-and-seal adhesive strip
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Durability: Water-resistant, tear-resistant, and puncture-resistant construction
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Color Availability: Solid opaque white baseline (additional custom print branding variations available)
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Package Contents: Available in wholesale bulk quantities with structured volume discounts
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Customization Options: Fully compatible with Flexo Ink Print and Dynamic Color single-side branding imprints
Wholesale Poly Mailer Overview
Streamline your business logistics with high-durability packaging designed for fast-paced fulfillment. These wholesale 12x15.5-inch plastic mailers provide absolute weather and surface protection for a wide array of soft goods, documentation, and retail products. Engineered specifically for e-commerce store owners, retail brands, and warehouse operations, these lightweight envelopes optimize your dimensional shipping costs while ensuring packages look professional upon arrival. Whether you are running a high-volume boutique or managing corporate distribution, these clean, blank shipping envelopes deliver commercial-grade security from your warehouse shelf directly to your customer's doorstep.
Heavy-Duty Shipping Bag Features & Benefits
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Tamper-Evident Security Strip: Featuring a permanent peel-and-seal adhesive closure that bonds instantly, preventing theft and ensuring your contents remain safely locked inside until they reach the final recipient.
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Weatherproof Moisture Barrier: The non-porous 2.85 mil polyethylene skin shields sensitive items like clothing, textiles, and paperwork from rainy weather, snow, mud, and transit dirt.
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Ultra-Resistant Against Tears: Built with advanced multi-layer plastic matrices that flex under pressure to prevent sharp corners or overstuffed contents from piercing or tearing the bag open.
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Reduced Shipping Costs: The ultra-slim, ultra-lightweight layout adds virtually zero structural weight to your parcels, helping your retail operation drastically reduce monthly courier expenses compared to heavy cardboard boxes.
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On-Demand Custom Branding: The smooth, premium outer surface is engineered to receive clean custom ink imprints, allowing you to easily stamp your corporate logo or promotional graphics directly onto the outer packaging.
High-Volume E-Commerce Packaging Use Cases
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Apparel and Textiles Fulfillment: The perfect spatial fit for shipping folded t-shirts, hoodies, activewear, jeans, and soft fabrics without adding unnecessary bulk.
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Document and Media Protection: Keeps critical paperwork, brochures, catalogs, bound books, and non-fragile promotional materials completely flat, clean, and dry.
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Soft Home Goods Distribution: Easily accommodates pillowcases, small blankets, plush toys, and soft accessories for secure domestic or international transit.
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Retail Supply Management: Gives brick-and-mortar storefronts or growing digital brands a reliable, standardized packaging solution to quickly batch-pack orders during peak seasonal rushes.
Why Choose Shop Backpacks Online Mailers?
When you source your industrial packaging supplies from Shop Backpacks Online, you receive commercial-tier materials optimized specifically for high-efficiency enterprise use. Our mailers are manufactured using strict quality-control protocols to guarantee uniform thickness and reliable adhesive performance across every single unit. We completely eliminate weak seals and thin structural points so your business can ship items with total confidence. Backed by highly competitive bulk tier pricing, rapid fulfillment, and a dedicated customer support team, we help you lower your operational overhead while maintaining the professional presentation your brand identity deserves.
