About This

【50% Thicker Bubble Cushioning】Metronic thickened bubble mailers, specially designed for transporting fragile and valuable items. The 1/7" bubble layer is 50% thicker than the standard version, providing stronger shock absorption and effectively resisting bumps, drops, and accidental compression during transit. Whether it's makeup sets, CD, crystal dishes, handicrafts, or documents, our padded envelopes all receive reliable cushioning protection.
【Fits 8.5×11" Items Perfectly】Our bubble envelopes are specifically designed with a generous usable internal dimensions of 9.25 x 11"(outside: 9.25x12"), making them the gold-standard solution for 8.5x11 items, clothes, coin albums, puzzles, game discs, tablets, books, and other items. Say goodbye to items that won't fit in padded mailers！
【Waterproof & Durable】We never compromise on durability. Our thickened mailing envelopes bubble padded are made from high-quality, tear-resistant polyethylene with a waterproof layer that protects against light moisture, dust and accidental spills. Metronic padded mailing envelopes are ideal for packaging, shipping and mailing, ensuring your parcels arrive intact.
【Strong Self-Adhesive Seal & Tamper-Resistant Design】The shipping envelopes bubble mailer flap uses a weather-resistant adhesive that stays securely sealed even under demanding conditions, preventing accidental opening or tampering during transit. The peel-and-seal design allows for quick and easy closure, making these poly bubble mailers a convenient choice for e-commerce sellers, retail stores, office use, and more.
【Why Choose Us】As a trusted brand specializing in padded shipping envelopes, Metronic understands that packaging protection is paramount to your needs. That's why we've introduced these newly upgraded thick poly bubble mailers, offering a premium solution far exceeding standard mailing envelopes. With a 50% increase in internal bubble thickness, they provide exceptional cushioning for valuable and fragile items. Additionally, their expanded 9.25×11 inch design perfectly accommodates 8.5x11" items, solving the common issue of size mismatches found in the market. Choose Metronic for thoughtful and professional protection for your business.