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A four and a half inch by 6 inch KoolMax cooling pack.
4.5" x 6" Kool Max® Pack
A four and a half inch by 6 inch KoolMax cooling pack.
4.5" x 6" Kool Max® Pack
A four and a half inch by 6 inch KoolMax cooling pack.
4.5" x 6" Kool Max® Pack
(Click to see larger image and other views)
SKU: KM456
Individually priced 4.5" x 6" Kool Max® Packs. See the tables below for how many packs go with each vest style and size.
FSA & HSA Approved
Price: $6.00
Product Details

Number of packs for each vest:

Kool Max® Zipper Front Vest (#KMVZ)

 Size   Number of Packs 
 XS  5
 S/M  8
 M/L  9
 L/XL  11
 XL/2XL  12
 2XL/3XL   12


Kool Max® Poncho Vest (#KMV)

 Size   Number of Packs 
 One Size Fits Most   10


Kool Max® Women's Fashion Cooling Vest (#FVW-KM)

 Size   Number of Packs 
 XS  5
 S  5
 M  5
 L  5
 XL  5
 2XL  5
 3XL  8
 4XL  8


Kool Max® Men's Fashion Cooling Vest (#FVM-KM)

 Size   Number of Packs 
 S  8
 M  8
 L  9
 XL  9
 2XL  9
 3XL  10
 4XL  10



Kool Max® Secrets Vest (#KMS)

 Size   Number of Packs 
 One Size Fits Most   4


Kool Max® Slim Torso Vest (#KMVTS)

 Size   Number of Packs 
 One Size Fits Most   6 


Kool Max® Cooling Leg & Groin Wrap (#KML)

 Size   Number of Packs 
 One Size Fits Most   4 

D
o you have a question about this item? 
Please contact our customer service. We are happy to help!

How does it work? 

  • Frozen water-based cooling packs fit into insulated pockets in vests and accessories.
  • Non-toxic and chemical-free Kool Max® cooling packs are made of biodegradable materials.
  • Provide constant cooling for up to 3-4 hours. (Please note: cooling times are estimates and will vary depending on climate, body metabolism and activity.)
  • Packs are reusable and should last for years with proper care and storage. 
  • To use, place the packs in the freezer until they are frozen solid. For best results, store in the freezer, so they're ready when you are!


  Save money with a cooling kit!
  • Kits include a vest, your choice of accessories and a complete extra set of cooling packs for each product! Products can be used separately as needed or together for maximum cooling benefits.
Soft-sided cooler  Add a Polar Soft-Sided Cooler to carry your packs!
  • Large soft-sided cooler measures 7" x 14" x 12" and will carry multiple sets of Kool Max® Packs for vests and accessories.
Product Reviews
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Rate this product:  1   2   3   4   5 

"MS heat fatigue relief"

on 7/31/2023 8:36:44 PM

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Details: I have multiple sclerosis and suffer from heat exhaustion/intolerance etc.. the Polar products were gifted to me by a MS society in my town. On hot days which happen in CT more often than u think. These polar products are hands down life savers. I am able to enjoy my 3 children's events and not be completely wiped out. Quality of life and living my most is my desire. Polar products help me so much I can't appreciate them enough for building products that help us disabled folk be our best. Cheers... More details

Location: CT

Would you recommend this to a friend?: Yes

"Backup cool packs"

on 7/21/2023 5:41:48 PM

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Details: My wife has MS and we use cooling vests to help her cope with summer heat and still enjoy life. The Polar Product cool vest is by far the best and last the longest, so we've invested in two extra sets of cool pack. With three sets of cool pack my wife can go 24 hours with available body cooling. Given the availability of a freezer (such as on vacation) my wife has cooling indefinitely because the Polar Product cool packs freeze in less time than it takes for a set to thaw. Look no further for bo... More details

Location: Hohenwald, TN

Would you recommend this to a friend?: Yes, and I already have.

"Superb kit"

on 12/19/2022 1:43:50 PM

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Details: Thankfully I do not suffer from MS. I use it to keep me cool during my appearances as Father Christmas. The waistcoat and gel packs work perfectly. Unfortunately I have been a bit heavy handed and managed to puncture some of my gel packs. I ordered some replacements from Polar Products in the USA and 3 days later they were delivered. Absolutely first class service.

Location: Thetford, UK

Would you recommend this to a friend?: Yes

"Help for Santa"

on 9/13/2022 10:02:39 AM

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Details: I have a cool vest that has 5 pockets in the front and five in the back. When I wear my Santa outfit I wear my cool vest under it. I use the 4.5 x 6 Kool Max packs. I have three sets of these so every four hours I can change them out. I stay cool and comfortable with these. Love the Kool Max packs.

Location: Bellevue, Nebraska

Would you recommend this to a friend?: 100%

"Great service!"

on 8/26/2022 2:31:59 PM

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Details: I ordered replacement ice packs for my cooling vest and they came within three days. I had asked that they expedite the delivery since we were going away, but the representative said I didn't need to do that, and she was right!

Location: Massachusetts

Would you recommend this to a friend?: Yes

"Appear to continue to stay cold longer than the originals."

on 10/3/2021 8:17:26 PM

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Details: I purchased a Polar jacket with cooling packs and I have never regretted it. Then I bought additional cooling packs, freezer container and bag. I can now go almost 5 hours on the worst days. As I age the heat becomes more oppressive and these are a lifesaver.

Location: Powder Springs, Georgia

Would you recommend this to a friend?: Absolutely

"Perfect for Az Heat"

on 8/12/2021 3:57:33 PM

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Details: ❤ Vest with frozen inserts Lasting 3-4 hrs. Easy to replace frozen inserts for continuous comfort. Dx with MS in 1997. A necessity in AZ.

Location: AZ

Would you recommend this to a friend?: YES

"Love these gels"

on 9/1/2020 1:59:34 PM

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Details: These are better than older style gels. The front of my vest is much easier to fill.

Location: PA

Would you recommend this to a friend?: Highly recommended

"Kool Max"

on 8/11/2020 12:37:17 PM

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Details: I use these packs in a cooling vest, my regular ice packs melt very quickly. Kool max lasted about 4 hours. Great!!!!

Location: Florida

Would you recommend this to a friend?: yes

"Awesome!"

on 7/24/2020 10:22:00 AM

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Details: I love these cooling packs! 

Location: Idaho

"Love these ice packs"

on 7/15/2019 1:28:01 PM

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Details: I've been using cooling products for years because of MS and heat sensitivity. I'm so glad I discovered Polar Products. These ice packs stay cold for over 5 hours, don't become as hard and stiff as other brands do and thus remain comfortable, and it doesn't take very long for them to become cold again when placed back in the freezer. In addition, the customer service is terrific. They respond to questions and emails within 24 hours, often within 12. I will never use another brand again.

Location: California

Would you recommend this to a friend?: Absolutely. I already have.

"Perfect!"

on 6/25/2019 12:58:13 PM

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Details: Fits perfectly in the vest pockets and lasts a long time in the MS heat.

Location: Mississippi

"Very cold"

on 9/1/2018 7:28:13 PM

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Details: I like these - they stay very cold, even more so than do other types of ice/gel packs, imo - good in coolers or as cooling agents (like in the Polar Products vests).

Location: Chicago

Would you recommend this to a friend?: Yes

"Great way to keep our mascot cool"

on 7/4/2017 9:24:45 AM

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Details: Will use these ice packs in a vest we purchased to keep our nonprofit's mascot cool during events outside. Work great!

Location: Coldwater, MI

Would you recommend this to a friend?: Yes

"Excellent!"

on 8/3/2016 10:59:31 PM

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Details: We actually bought 6 extra packs so my husband (who has MS) would have 2 full sets of Kool Packs for his cooling vest, one set for the afternoon and one set for during the night.

Location: Deland, FL

Would you recommend this to a friend?: Yes

"4.5"

on 5/22/2013 7:37:52 PM

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Details: Packs lasted for no more than one year before they started leaking. Packs are very easily torn. Love the fashion vest so will have to put up with ordering new packs.

Note from Polar: Kevin, we're sorry for your trouble with your cooling packs. Our packs have a one year product guarantee. If you experience any issues with the packs you've recently purchased, please give us a call: 1-800-763-8423. Thanks for your business!

Location: West Chester PA.

Would you recommend this to a friend?: fashion vest yes; packs maybe

Let Us Help You

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Customer Service 800.763.8423 • 330.253.9973
polar@polarproducts.com Fax: 330.253.4233
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