What Are Mylar Storage Bags – Ultimate Guide

July 2, 2026 at 4:26 pm

Mylar bags are the first choice for vacuum-sealing food and wellness products. Air-tight, lightweight, tamper-evident, and child-resistant – Mylar will keep your products fresh while remaining compliant with safety regulations. Learn from Gamut Packaging, the leading expert in mylar storage solutions for 15 years, how you can incorporate customized packaging and elevate your brand.

What are Mylar Bags?

Mylar bags are made from multiple layers to offer excellent odor control, moisture resistance, and light damage, extending the shelf life and freshness of your product. Mylar, known scientifically as boPET or Biaxially-oriented Polyethylene Terephthalate, was invented by DuPont and has been a storage staple for over 50 years. Mylar has an incredible range of applications from food and snack storage to celebratory balloons.

Five Benefits of Mylar Bags

Barrier Properties - The “barrier layer” locks in flavor for air-tight packaging and keeps moisture out, extending the shelf life of your product.

Durability – The multi-layer construction of Mylar bags creates a strong, tear-resistant material to protect products from loss or damage during transportation and storage.

Flexibility – Lightweight and easy to store, Mylar bags, take up much less shelf space than their rigid jar and bottle counterparts.

Reusable – When properly cleaned, Mylar bags can be refilled and sealed for reuse.

Child-Resistant – Gamut Packaging offers two patented, child-resistant Mylar closures to reduce accessibility and the risk of accidental ingestion by children.

Selecting the Right Size

Gamut Packaging offers a wide variety of Mylar bag sizes to fit all your snack storage needs. Select from our preset sizes ranging from 1 Gram to 448 Grams.

How Can Gamut Packaging Customize My Mylar Bags?

Gamut Packaging offers a number of options to customize your mylar bag’s size and shape to fit your needs.

Die-Cut	The easiest way to make your product stand out in a competitive market is to create a mylar pouch that’s tailored to your exact needs. Designing a custom die-cut mylar bag gives you complete creative control over the size, dimensions, and overall shape, ensuring a perfect fit.
Gusset	Selecting a mylar bag with a corner gusset at the bottom allows your product to be displayed standing up. If your product is heavy or needs more space, we can customize a flat bottom pouch or a bag with side gussets.
Hang Hole	Adding a hang hole to your mylar bag makes it easy for retailers to optimize your shelf placement, whether it’s in a point of purchase display or on a pegboard.
Ecofriendly	Gamut Packaging offers two types of sustainable bag options. Recyclable mylar bags are a cost-effective alternative to a standard mylar. If you’re trying to get away from plastics entirely, kraft paper bags are an alternative option to mylar. However, due to the nature of the materials, kraft pouches require additional printing plates and there can be a slight color shift in the final results.
Tamper-Evident	Add a tear notch above the opening to ensure consumers that your products are fresh and authentic!
Child-Resistant	Gamut Packaging offers two patented child-resistant zip closures – Pinch N Slide and Pinch N Pull. Both child-resistant mylar bag closure types meet state regulatory requirements and are tamper-evident.

Learn more about the patented Pinch N Pull and Pinch N Slide bag options.

Once you’ve decided on the size and shape of your mylar bag, it’s time to finalize the aesthetic with special finishes!

Matte or Gloss	Choosing gloss gives your mylar pouch a polished, shiny look. Selecting matte for your mylar bag will provide a sleek, flat look.
Spot UV	Add a gloss coating on targeted areas of your bag while leaving others in a matte finish to make those areas stand out.
Soft Touch	A soft-touch finish is exactly what is sounds like – a multi-layer coating that feels silky soft. Soft-touch brings an extra layer of elegance to your mylar bag.
Hot Foil Stamp	Amp up the look of your mylar bag by adding a hot foil stamp. The hot stamp process uses pre-dried inks, otherwise known as foils, that are then transferred to your mylar pouch at high temperatures, leaving behind your highly reflective design.
Emboss	Embossing is a technique that raises select parts of the mylar surface, creating a design you can feel, adding to the visual appeal.