Magnetic vs Zippered Coolers: How to Choose

Most people choose a cooler based on size or ice retention. But one feature you'll interact with more than anything else is the lid.

A cooler gets opened dozens of times in a day, whether pulling out ingredients at the campsite or passing snacks around at a tailgate. The smoother that access feels, the better the whole day flows. Here's how magnetic and zippered closure types work and what MagSnap™ technology adds to the experience.

How Zippered Coolers Work

A zipper creates a continuous mechanical seal along the cooler opening. When fully closed, a quality leakproof zipper locks cold air in effectively and prevents spills during transport. Zippered coolers have been the standard on soft-sided models for good reason: the closure is proven, secure, and handles everything from road trips to weekend camping.

Zippers perform best when the priority is a fully sealed cooler for transport, overnight storage, or extended ice retention.

What a Magnetic Closure Adds

A magnetic cooler lid uses embedded magnets along the opening that align and snap shut automatically the moment the lid drops. No slider or deliberate pull. The seal happens on contact, every single time.

CORE's MagSnap™ technology brings a few specific advantages to everyday cooler use.

One-Handed Access

Lift the lid with one hand, grab what you need, and let go. The magnets pull the lid back into a full seal without a second thought. At a tailgate, behind the grill, or carrying gear in the other hand, one-handed access keeps the day moving.

Automatic, Consistent Seal

Every magnetic lid cooler creates the same seal. The magnets align and lock with consistent force, whether the cooler has been opened five times or fifty, keeping cold air locked in between grabs.

Zero Maintenance

Magnetic closure coolers have no moving parts, no teeth, and no tracks. The sealing strength stays the same over years of use without cleaning, lubrication, or replacement parts.

How the Two Closures Compare

Both closure types are designed to keep contents cold. The difference is in how each one handles repeated daily use. 

Rather than replacing one closure with the other, CORE designed the CLIMAKEEP line to offer both in the same cooler.

CLIMAKEEP: Dual Closure in One Cooler

CLIMAKEEP magnetic coolers pair a MagSnap™ magnetic lid with a traditional leakproof zipper. The two closures serve different moments in the same trip.

• Use the magnetic lid for quick, frequent access throughout the day
• Zip fully for transport, overnight storage, or maximum ice retention on longer trips
• HYPERCOLD™ insulation holds ice for up to three days

The 24 Can Backpack Cooler adds padded shoulder straps for hands-free carrying, with MagSnap™ top-loading access for grabbing drinks on the move. The 36 Can Cooler handles larger groups and full-day events with the same dual-closure system. 

FlipBack: Fully Magnetic, Fully Zipperless

For campers who want the simplest possible access, the FlipBack 24 Can Hard Liner Cooler removes the zipper entirely. The MagSnap™ lid flips back for wide-open, no-zipper access and snaps shut magnetically on release. A one-handed latch locks the lid for transport.

A leakproof, food-safe hard liner inside holds shape, contains spills, and lifts out for easy cleanup. The fully zipperless design is built for day trips, tailgates, and outings where speed and simplicity come first.

Match the Right Closure to Your Trips

The best cooler closure depends on how a cooler gets used throughout the day. Zippered seals deliver proven, reliable performance for transport and extended storage. Magnetic closures add speed, convenience, and effortless one-handed access for frequent use. And with CLIMAKEEP, both options work together in the same cooler.

Browse CORE's full cooler collection and match the right closure, size, and features to the way you spend time outside.

FAQs

Are Magnetic Coolers as Leakproof as Zippered Ones?

Yes. CORE magnetic coolers feature welded seams and leakproof construction. CLIMAKEEP models also include a leakproof zipper for a dual-closure seal during transport.

How Long Do Magnetic Coolers Hold Ice?

FlipBack coolers retain ice for 24+ hours. CLIMAKEEP coolers with HYPERCOLD™ insulation hold ice for up to three days, depending on conditions.

Can You Open a Magnetic Cooler with One Hand?

Yes. The MagSnap™ lid lifts with one hand and seals automatically when released. No slider, no two-handed effort needed.

Do the Magnets Lose Strength Over Time?

No. The embedded magnets maintain consistent sealing strength with regular use. No replacement or maintenance needed.

What Is the Difference Between CLIMAKEEP and FlipBack?

CLIMAKEEP coolers offer a magnetic lid plus a leakproof zipper for dual closure and up to three-day ice retention. FlipBack coolers are fully zipperless with a hard liner.

Are Magnetic Coolers Good for Tailgating?

Absolutely. Magnetic lids handle frequent opening without any wear, making a magnetic top cooler ideal for tailgates where access happens dozens of times.

What Size Magnetic Cooler Do I Need?

A 12-can cooler covers solo outings. A 24-can model handles couples and small groups. A 36-can cooler suits full-day events and larger crews.