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Kool Max® vs. Cool58® Phase Change

Kool Max® Cooling Packs

When is Kool Max® the best choice?

Kool Max® Cooling Pack systems offer very high cooling energy for a moderate cost. The packs are effective in all climates and weigh less than 5 pounds. They may be worn beneath clothing and provide cooling for up to 4 hours depending on environmental conditions.

How long will the cooling packs last?

The best thing about our Kool Max® Cooling Packs is that they can be reused over and over again. With proper care and storage, your packs should last for years. During the winter, or whenever they're not in use, it's best to store them in the freezer.

How long do the packs stay cold?

The packs will stay cold for approximately 3 to 4 hours, depending on your situation. For extended cooling, we recommend purchasing an extra set of packs (which are a great value when purchased with a vest) to change out when the packs are no longer cool. Keep the extra set in a freezer (or cooler), ready to go!

Will the packs get my clothes wet?

No. The packs are sealed to prevent any leakage. Any condensation from the frozen pack will be absorbed by the vest or wrap.

How much does each pack weight when frozen?

Each pack weighs 8 ounces when frozen.

How does it work?

These non-toxic, water-based packs freeze in the freezer, and provide extended cooling while they are frozen.

What are Kool Max® Cooling Packs made of?

Hey, that's our secret! But we will tell you that our Kool Max® Cooling Packs are made in Akron, OH of all-natural, recycled, non-toxic materials.

What are the vests made of?

The vests are made of nylon and cotton with insulated foam padding.

How do I activate the packs?

Simply place the packs flat in the freezer.

How long will it take the packs to freeze?

This depends on freezer settings. They don't take any longer than water to freeze. For best results, store them in the freezer, so they're ready to go when you are!

If the packs burst, is the liquid toxic?

Kool Max® Cooling Packs are made of non-toxic, all-natural, and recycled materials, so it isn't harmful. If the liquid does come into contact with your skin, rinse the area with gentle soap and warm water.

Under what conditions would the packs burst?

The packs won't survive improper storage in hot conditions, so for lengthy storage, keep them in the freezer. Always place them flat in the freezer. Severe impact to the packs can cause them to burst at the seams.

Do the packs meet airline security requirements?

You cannot carry-on the packs; however, they can be in your checked baggage. It would probably be a good idea to check with your airline just in case, and to pack them in a resealable clear plastic bag. 


Cool58® Phase Change

When are Cool58® Phase Change Packs the best choice?

Cool58® Phase Change packs provide constant cooling of 58 degrees Fahrenheit, regardless of climate, and are the best choice when freezers are not available. Phase change packs are commonly used under military combat gear, hazardous materials suits, mascot costumes, and other apparel.

How long do the Cool58® Phase Change Packs last?

Our reusable Cool58® Phase Change Packs provide a constant cooling of 58 degrees Fahrenheit for 1 to 3 hours, depending on your situation.

Will the packs get my clothes wet?

No, Cool58® phase change packs are frozen and do not produce condensation.

How much do the packs weigh when activated?

The largest packs weigh approximately 1.3 pounds each. There are 4 packs for each vest. The packs for neck wraps are smaller.

How do the packs work?

The packs are made of a special composition that 'freezes' at 58 degrees; the packs will release that constant temperature regardless of climate.

What are the packs made of? Is it toxic?

The packs are made of a special non-toxic component.

How long does it take to activate?

The packs can be submerged in ice water for the quickest activation. You'll know they're ready when the packs turn white. For the best (and most convenient) results, store the packs in the freezer or refrigerator, ready to use.

Are the packs flammable?

No, only under extreme conditions, like exposure to open flame.

Why do the packs change from clear to white?

When the packs are activated, they turn from translucent to white. That way you know when the pack is 'frozen' and it's ready to go!

How do I use the packs?

Submerge the phase change packs in ice water for up to 45 minutes, or place in a freezer, until solid. Return packs to garment pockets. Wear; repeat steps as needed (or use additional packs for continuous relief). For the best (and most convenient) results, store the packs in the freezer or refrigerator, ready to use.

Do the packs meet airline security regulations?

You cannot carry-on the packs; however, they can be in your checked baggage. It would probably be a good idea to check with your airline just in case, and to pack them in a resealable clear plastic bag. 


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