7STAR 14x20 Poly Mailers 650 Pack – 2.75 Mil Extra Heavy Duty Self-Seal Shipping Bags

For your biggest shipments — 7STAR 14×20 Poly Mailers, 650 Pack at 2.75 mil extra heavy duty co-extruded polyethylene. The 14×20 is the largest standard poly mailer size, built for jackets, winter coats, fleece blankets, multi-piece clothing bundles, and oversized soft goods that need room to breathe.

At 2.75 mil thick, these large poly mailers won't tear, puncture, or collapse under the pressure of high-volume sorting. The self-seal peel-and-stick closure creates a strong, tamper-evident bond in a single press — no tape, no fumbling, no delays on the packing line.

• Size: 14" × 20" inner (14.5" × 20.5" total with adhesive flap)
• Quantity: 650 poly mailers per case
• Thickness: 2.75 mil co-extruded polyethylene — extra heavy duty, waterproof
• Closure: Self-seal peel-and-stick adhesive strip — tamper-evident
• Color: Opaque white exterior / co-ex black interior for privacy
• Compatible with USPS Priority Mail, UPS, FedEx Ground, Amazon Logistics
• Best for: jackets, winter coats, blankets, uniforms, multi-item bundles, oversized soft goods
• Bulk 650-count case — best price per bag on oversized mailers

Don't compromise on your biggest orders. These 14×20 postal bags give you the size, strength, and professional look that large-order fulfillment demands.