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Cool58™ Phase Change Zipper Vest

Cool58™ Phase Change Zipper Vest
Cool58™ Phase Change Zipper Vest
Cool58™ Phase Change Zipper Vest
Cool58™ Phase Change Zipper Vest
Cool58™ Phase Change Zipper Vest
Cool58™ Phase Change Zipper Vest
Cool58™ Phase Change Zipper Vest
Cool58™ Phase Change Zipper Vest
Cool58™ Phase Change Zipper Vest
Cool58™ Phase Change Zipper Vest
Cool58™ Phase Change Zipper Vest
Cool58™ Phase Change Zipper Vest
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Our Cool58™ Zipper Vest is a great choice when access to freezers is limited. We have three choices of pack sizes so you can choose the ideal weight for you.

Now available in Pink in limited sizes!
More details...
Price: $170.00
Select Vest Color & Size (See Size Chart Below):

Vest Phase Change Pack Weight:

Add an extra set of packs! Keep them in the freezer or a cooler, so they are ready when you need them:

Add optional extension straps if your measurements do not fit the size chart below:

Add a Polar Cooler to carry your packs:

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of our Cool58™ Phase Change Cooling Vest and Neck Wrap
from Travis Richards of

How does it work?
  • These cooling packs freeze solid at a moderate and comfortable temperature of 58� Fahrenheit, so they can be frozen in a freezer, refrigerator, or even a bucket of ice water.
  • Once activated, these reusable packs deliver comfortable cooling for up to 2-3 hours. (Please note: cooling times are estimates and will vary depending on climate, body metabolism and activity.)
  • Packs are non-toxic and non-flammable.
  • Packs do not require a freezer! Packs can simply be submerged in ice water or placed in a refrigerator or freezer to activate. Easy to use - can be activated by simply submerging the packs into ice water for up to 20 minutes when access to freezers is not available.
  • Works in any climate - extreme heat and humidity are no problem! The cooling performance is not impacted by humidity or outside temperature.
Keep the extra set in the freezer or a Polar Cooler, ready to use.

Click here to purchase Cool58™ packs separately.

Add a Polar Cooler 
to carry your packs!

Our Industrial Vests are compatible with our Cool58™ and Kool Max® cooling pack technologies. The four pockets in each vest will fit either four Cool58™ phase change cooling packs or four of our Kool Max™ frozen water-based cooling strips. 
Click here for our Industrial Cooling Technology Kit to get both pack technologies for more flexibility on the job!

Commonly used for:
  • Staying cool during outdoor activity or work in hot conditions where access to freezers is limited or not available
  • Industrial applications
  • Motorcyclists and travel where access to freezers is limited
  • Multiple Sclerosis heat sensitivity
  • Mascots or costumes
Cool58™ Zipper Vest (#PCVZ) features:
  • Four (4) Cool58™ Packs with your choice of pack size and weight:
    • .88 lb. packs (400g of cooling material) for a total vest weight of 4.0 lbs.
    • 1.1 lbs. packs (500g of cooling material) for a total vest weight of 5.0 lbs.
    • 1.76 lbs. packs (800g of cooling material) for a total vest weight of 7.5 lbs.
  • One (1) 100% cotton cooling vest
    • Simple and unisex design with a zipper-pull front.
    • Size is adjustable with hook and loop closures at the chest, waist, and shoulders for a snug, comfortable and customized fit.
    • Packs fit into insulated pockets inside the vest. The pockets have a comfortable all-cotton fabric to protect the skin and an insulated outer composite fabric to direct the cooling energy toward the body. 
    • Discreet: can be worn over or beneath clothing.
    • Colors: Khaki or Blue
    • Sizes: M/L, L/XL, XXL. See tips for taking measurements beneath the size chart.
Do you have a question about this item?
Please contact our customer service. We are happy to help!

Your choice of Cool58
Pack size and weight:

Weight of Individual Pack
Amount of Phase Change Material
Pack Size
Packs Set
Total Vest Weight
.88 lb. pack400g of cooling material5" x 12.5"
4 packs
4.0 lbs.
1.1 lbs. pack500g of cooling material6" x 13"
4 packs
5.0 lbs.
1.76 lbs. pack800g of cooling material6.5" x 16"
4 packs
7.5 lbs.

 #PCVZ Size Chart:

SizeChest and Waist Circumference
Vest Length
Weight Range
S/M32" to 46"20" to 21.5"~ 85 to 130 lbs.
M/L35" to 49"
21.5" to 23"
~ 125 to 175 lbs.
37" to 51"
24.5" to 25"
~ 175 to 310 lbs.
XXL38" to 63"
25.5" to 27"
~ 275 to 360 lbs.
Extension Strap KitAdds up to 20"Adds up to 5"up to 400 lbs.

How to find your size: This vest is adjustable at the shoulders, chest and waist. Therefore, it will fit a large range of sizes. These measurements may help determine the best size for you:
  • To measure the chest and waist circumference: First, wrap a soft measuring tape around the fullest part of your chest and under your armpits, making sure to keep the tape parallel to the ground. This determines your chest measurement. Then wrap a measuring tape around your natural waistline (usually across your belly button), making sure to keep the tape parallel to the ground. See where the larger of the two measurements fall on the size chart. Please note: The vest circumference is independently adjustable at the chest and waist with hook and loop strap closures. if you think you are in between two sizes, order the next size up to accommodate the cooling packs. 
  • To measure the vest length: Hold the tape measure at the highest point of your shoulder. Look straight ahead and pull it down to your natural waist. Mark this measurement on the tape measure with your thumb. Please note: The vest length can be adjusted at the shoulders. When in doubt, order the next size up to accommodate the cooling packs and to prevent the vest from looking too short. 
  • Please note: the weight range is simply a guide; there are many exceptions for different body types. The optional extension strap kit includes extensions for the waist, chest and shoulders. This allows extra fit adjustment for large people, extra long torsos or extra large chests or waists on smaller people.
  • Our Customer Care team is here to answer product questions and provide additional details and measurements. Just give us a call at 1-800-763-8423 or send us an e-mail. We are happy to help!

Add a Polar Cooler to carry your packs!
Large soft-sided cooler measures 7" x 14" x 12" and will carry multiple sets of Cool58™ Packs for vests and accessories.
Save money when you buy a cooling kit.

Includes the Cool58™ vest of your choice, a Cool58™ Deluxe Neck Band, and a complete extra set of packs for each!  Products can be used separately as needed or together for maximum cooling benefits. For more information, check out our Body Cooling Kits.

Polar Products is proud to support multiple sclerosis awareness
and research for a cure. 20% of proceeds from our "MS Awareness" Quick Cool™ Scarf benefit national MS non-profits.

Read more about our "MS Awareness" Quick Cool™ Scarf here.

Polar Products Inc. is a GSA Contract Holder.

Federal Supply Schedule #V797P-4536a

Product Reviews/Testimonials


Write your own review/testimonial


Rate this product: 1 2 3 4 5 

"ms sufferer"

Andrew McKenzie on 7/25/2013 6:12:22 PM

Details: The cool packs do what they say and can be reactivated quickly.they are rather heavy and I find the ones in the chest make movement awkward.that may be something to do with my large belly :-) Be nice if the pack could be lighter or be individual packs rather than the quad size so you can distribute weight as you like., Having ms heat drains me but I did a lot of research and found this to be best price and best product as I had to pay out of my own pocket. I would recommend

Location: pennsylvania hot and humid

Would you recommend this to a friend?: yes i would and will


Lynn R Hobschaidt on 7/1/2013 6:34:24 PM

Details: This is the best cooling system I have purchased yet!! I work in a hot warehouse and at each break I change the packs and it keeps me cool. I do host MS so I like to beat it at it's crummy game and stay cool! I also have an extra set of four packs that I keep in the thermal cooler with some ice packs and it seems to work for me! I really would recommend this cooling vest and thermal case. It seems as it lasts a little more then 2 hours at a time....From a Happy Camper!!

Location: New Jersey

Would you recommend this to a friend?: YES!!

"Great Investment"

VALERIE BENKO on 5/28/2013 5:58:19 PM

Details: Being active with MS is hard when some part of me goes numb every time I step into the heat. I noticed this problem working out indoors as well. After doing extensive research I chose the Cool 58 Phase Change vest as my first vest. I was a little concerned that the smallest size came in M/L because I'm only 5 feet tall and was afraid it would be too long. It wasn't! Working out with this vest has literally kept my core cool and has prevented MS flares. For regular workouts this is a great vest. ... More details

Location: Pennsylvania

Would you recommend this to a friend?: Yes


Alice Hallberg on 12/11/2012 10:11:52 AM

Details: Santa likes the vest.

Location: Texas

Would you recommend this to a friend?: Yes

"cooling vest"

Wilbur Williams on 7/20/2012 11:20:27 AM

Details: I work in a very hot environment and I wore the vest a couple times when it was very hot and humid, the vest works well but im a welder and i wore it under my leathers, it did not last me four hrs it only lasts for about 2 and a half, but thats in extreme heat conditions. i would tell other people to buy one.

Location: york

"Chilling in the Desert"

Mary Schaal on 7/15/2012 3:09:21 PM

Details: I live in the sunniest city in the world, in the arid western part of the Sonoran Desert. Summers are brutal, especially for people with MS. This vest has given me freedom to go outdoors more. It is light enough to be comfortable, and able to be reactivated without a freezer (great for getting across the parking lot after work, shopping, walking, and going to the dog park). Would likely be good for motorcycle and bicycle riders too.

Location: Yuma, AZ

Would you recommend this to a friend?: Yes!

"Cool 58 review"

Karis Cromartie on 5/29/2012 11:20:49 AM

Details: I am very pleased with my new cooling vest. It is very easy to adjust the size and it does not get too cold, stays just the right temp. I haven't used it long enough to see how long the phase change packs last (it hasn't gotten real hot here yet). I use a belt with it to keep the coolness against my waist too (being a female user). I only wear it on the outside of clothes. The only thing I would change would be the weight. With MS, the weight does not help with my fatigue, but if I am sitting mo... More details

Location: Sacramento, CA

Would you recommend this to a friend?: I have recommended this to all of my heat sensetive friends!

"Comfortable during drag races"

Gary on 5/5/2010 10:26:31 AM

Details: We purchased 2 of the Polar Phase Change vest systems. I race drag race NHRA Sportsman Pro class. The cooling vest worked brilliantly. I was comfortably in my car ready to race as others were waiting to the last moment to get in their cars due to the heat. My friend who has a Polar vest also uses all the packs, I use the ones just in the front. Both methods work great.

Location: North Olmsted, OH

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