These premium mylar open-top stand-up bags offer a high-barrier, durable packaging solution ideal for food, supplements, cosmetics, and a variety of small goods. Designed with a strong bottom gusset for stable display, they stand upright easily and maintain product freshness by protecting contents from moisture, oxygen, and external odors. The open-top style allows for secure heat-sealing, making them perfect for retail, storage, or sample distribution while providing a clean, professional presentation. Impulse heat sealer REQUIRED!