Great size and quality.
I have the 5, 4, 3 and 2.5L bladder and this one is a nice fit on the standalone cooling backpack.
The autonomy is also enough for me. The Weight to cooling duration ratio is nice with the standalone backpack. I really use the cooling feature of the standalone backpack on my way back in the evening when i'm inside the train to keep me cool during hot summer day.
I had an issue with the dual chamber, 4 litter bladder. The closing cap had an issue i believe and the water from the middle pouch was leaking. With this one i have no leaks.
Great product, the Extension coord (i took 2 meters) is great.
i'm using it in combination with the cooling bag.
I place my back on the side and i can sit in a chair or lay on my bed and have the cooling bag somewhere else ans still benefit of the cooling shirt without having the bag on my back.
It's cool, it works, and all the while the gentle pulsing of the pumped water is a light massage. The tubing does condensate a little, moistening the vest, and sometimes there can be moisture in the backpack, but both have easy remedies. I would have probably bought the full suit, had I known this works as well as it does, but the high collar vest does mostly what I need. I cannot wear the backpack under a jacket to hide it as I planned, butI think my job will forgive.
Great finish, great cooling effect and cooling capacity.
The bag is great finish, the cooling effect is nice and effective. Compared to the usual cooling vest, the bag is compact, nicely balanced, confortable to wear, and the cooling capacity is just right for my needs.My use case is to bring the cooling bag at work in the morning, the ice bladder stays cold the whole day inside the insulated bag. I then can use the cooling capacity of the bladder after on my way back from work, inside train or subway where AC is not guaranteed. My travel time can vary from 45 min up to 2 hour.
