| First things first - you do not need a DUI suit to dive DIR. A suit should keep you warm and dry (sadly not always true in any suit) not restrict movement in any way and inflict minimal buoyancy changes through the water column.
Given that I have just bought another TLS 350 though, an honest answer from my own point of view as a customer.
Protecs are nice suits having many of the features that the DUI has without the exhorbitant price tag. What I personally don't like is the zip cover, the way that the overlay is not attached to the drysuit inflate, the boots and the neck collar.
Polar Bears appear to be good if you can get one which fits and if you can get the dump valve positioned correctly. I do know of a couple of divers who have spent time working with Polar Bears to get a nice suit - and suceeded.
DUI suits have their problems of course, but I'm probably wedded to them now because of zipseals which, especially when travelling which I now do quite a bit, are just so convenient.
Their undersuits are another matter - they have changed the cut to a point where I just won't buy one and am trying to decide at the moment what to replace it with. Santi looks like a good bet at the moment but perhaps Polar Bears would be OK.
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