Can I take them in a cooler to my event?

First, check with the venue to see what their rules are regarding outside coolers. Other than that, yes, taking a cooler with ice water with you is always a good idea, and you can use it to refreeze the cooling packs in 20 to 30 minutes. 

Tip: Keep your ThermApparel UnderCool Cooling Vest and extra Cooling Packs in the freezer until you are ready to depart. Place your ThermApparel UnderCool Cooling Vest and extra Cooling Packs in a cooler and go where you need to go. The cooler will keep your ThermApparel UnderCool Cooling Vest cold until you get to your event. 

If you need your ThermApparel UnderCool Cooling Vest and extra Cooling Packs to stay cold for a few hours before you use them, use a cooler that has ice packs or ice water to help keep your ThermApparel UnderCool Cooling Vest and Cooling Packs cold. 

Tip from our customer Ben: If you can’t take a cooler take a large 2-3 gallon Ziplock type bag with you. Ask the food vendors for ice water or go to the paramedic / first aid tent. Tell them about your situation and heat sensitivity and that you need ice water to recharge your ThermApparel Cooling Packs. They should be able to help you. Read and watch Ben's testimonial.