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Cool Shirt MobileCool 1 with Lith-Kit

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  • Product Description
  • About Cool Shirt
  • About Cooling Vests

The Mobile Cool portable bag system is perfect for anyone constantly moving from location to location. This system has self-contained power, allowing it to be used while in transit to and from work sites without needing 110v power.

This system comes in two sizes (6qt or 12qt) and provides the same superior cooling as our other systems is powered by a rechargeable Lithium Ion Battery. 500 Hour Pump Life.

Bag System: MobileCool 1, MobileCool 1 (With Lith Kit), MobileCool 2, MobileCool 2 (With Lith Kit)

Whether working outdoors, exercising or just in need of respite from a hot summer the Comfort Cooler System keeps you consistently cool and safe in a hot environment.

This system will provide 1+ hour of continuous cooling. Cool Shirt has a cooling system for virtually every application.

Powered by 7.4V, it is used as a self-contained portable cooling system providing the portability needed to continue normal functions without being tied down to a power outlet. The battery powered pump built into this back pack system is designed to pump cold water from the back pack around Cool Shirt shirts and vests. Cool Shirt Shirts and Vests sold separately.


  • (1) MobileCool BP1 Cooler
  • (1) LithKit - Lithium Batter and Charger Kit

System Specifications:

  • Dimensions: B1: 15"L x 6.5"W x 9.5"H
  • Cooling Time: 1 Hour
  • Dry Weight: 2 lbs.
  • Power Required: Water Pump: 2.0A, 12V

NOTE: The Dragpack System is tapered in shape and are therefore longer at the top than at the bottom. The system is actually 10.5 inches long at the bottom

NOTE: Dragpack Systems are equipped with a plastic internal bag to house the water and ice. Water and ice MUST be placed inside plastic bag to prevent leakage.

Instructions for use:

  • Pour 1 quart of water into the cooling unit / plastic bag. Fill the unit with block ice (preferable) or cubed ice to the top of the unit / plastic bag
  • Put on the COOLSHIRT next to your skin with the tubing facing out
  • Connect hose to cooling unit and COOLSHIRT. Listen for an audible "click" which insures a good connection. Turn the unit on
  • Connect to 12V battery or other 12V power source. Blue wire is negative, brown wire is positive


  • Leaks: Check to see if all fittings are properly connected. Listen for audible "click"
  • Not Pumping: recheck electrical connections
  • Water not flowing: Check the hoses to be sure that something is not crimping the tubing. If the pump is running but not pumping water, add one more quart of water


  • COOLSHIRT: Turn the shirt inside out and wash in washing machine on the gentle cycle in warm or cold water. Let drip dry or dry in laundry bag dryer.
  • Add one 2 ounce bottle of Maintenance Additive (MA-16) in the cooling unit with the ice and water each time the unit is used. This will keep the pump, hoses and vest lines clear of the buildup that occurs naturally in water circulation systems and increase the performance and lifetime of the pump. You can also drain the hose and vest after each use with the Universal Connector & Drain kit.

Heat stress and illness can be very dangerous and even deadly. In an effort to combat this and to help people concentrate and operate safely in hot environments in 1987 Shafer Enterprises invented the Cool Shirt.

They have since been used by everybody from race car driver to picnickers. If you need to cool-off at work, on the track, on the field or just whilst gardening, Cool Shirt will have a solution for you.

The Water Shirts work by circulating cool water through non-kink tubing around the wearer's body. As this water moves through the system it takes the heat away from the body cooling you down. This water then flows back through the System Unit to a reserve of ice cold water. The circulating water automatically cools before being re-circulated around the shirt, vest or pants.

As well as their popular Water Shirts they also Cool Shirt also have a range of CO2 powered vests.

There is a Cool Shirt System available for any situation.

For ordering a water cooled shirt system all you have to do is:

  • Select the shirt, vest or pants you want
  • Choose the correct Cool Shirt System for your use
  • Order the length and type of hose you would like to connect the two together

Alternatively look at the Full Personal and Rehab Systems section for ready-made full Cool Shirt Systems.

Who are cooling vests for?

At The Warming Store we have cooling vests available for a range of activities and uses.

  • Construction workers, gardeners and anyone else who works outside during the summer
  • Military personnel
  • People suffering from medical conditions with heat sensitivity
  • Motorcyclists
  • Sportsmen and sportswomen
  • Emergency Services
  • Anyone who wants to enjoy the summer without being overwhelmed by heat

How do they work?

We have 3 styles of cooling vests which work in different ways to help you keep your cool.

Evaporative Cooling Vest

These use the natural effect of evaporation to cool you down. When these vests are placed into water the specially made non-toxic material absorbs hundreds of times its weight in water. This stored water is then slowly released. In hot areas this water will start to evaporate. As it does it the heat from the wearer is transferred into the air helping to reduce your temperature.

  • Light weight.
  • Easy to use throughout the day. If it dries out all you have to do is submerge in to water for hours more cooling.
  • No electricity is required making them perfect for people on the move.
  • The most affordable form of cooling vest.

Click to see all Evaporative Cooling Vests

Phase Changing Vests

These non-toxic vests have a large pocket front and back in which a refrigerated, frozen, water or air conditioned cooled pack can be inserted. This flexible cooled pack will then help reduce the wearers' temperature for up to 4 hours. These inserts can be refrozen as and when necessary. Each vest comes with one set of packs. For all day cooling we suggest ordering extra packs which can be kept in a freezer or cooler until it is necessary to exchange them.

  • Hard wearing.
  • Works in high humidity.
  • Each cool pack can be reused.
  • Does not produce condensation.
  • Typically provides a cooler temperature than evaporative cooling vests.

 Click to see all Phase Changing Cooling Vests

Pumped Water Cooling Shirts

These are the most advanced and the coolest of the cooling vests. Based on technology developed by NASA, these shirts work by circulating cool water through non-kink tubing around the wearer’s body. As this water moves through the system it takes the heat away from the body cooling you down. This water then flows back through the System Unit to a reserve of ice cold water. The circulating water automatically cools before being re-circulated around the vest.

  • Come in different power options including 12v, battery and standard outlet.
  • Provide a cooler temperature than both evaporative and phase changing cooling vests.
  • Works in high humidity.
  • Available as shirts and vests
  • Can be used as rehabilitation stations for construction workers or emergency services

Click to see all Pumped Water Cooling Shirts

Customer Reviews
Cool Shirt MobileCool 1 with Lith-Kit