Review on Stay Cool and Comfortable with Glacier Tek Sports Cool Vest and 8 Nontoxic Cooling Packs by Ryan Barton

I've used a few cool vests (mostly for work) and this is by far the best. Not sure what the material is but it seems to freeze faster and last longer than other similar products. Also, I was surprised to see any negative comments (don't know what it's about) as the quality and finish is better than the other two products I've bought (from other companies) in the past. "Boosters" also increase the duration of "Coolness" significantly. I have recommended it to friends/colleagues and I hear they are happy with the product too.