The Professional Series vest has worked out great. Much better than I anticipated. Ice packs have been lasting about 2 hours in 90 degrees plus high
humidity levels. I am considering purchasing a third set of ice packs.
Vest is very comfortable and not overly restrictive even though it needs to be snug.
The thermal carry case is awesome. The 80 piece ice pack stays nearly frozen all day sitting in a hot truck.
The only negative is the stitching integrity of the outer side seams. This area takes a beating when swapping ice packs. My wife has repaired this area with a heavy duty monofilament type of thread she had and so far no further issues on either side.