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They aren't so different from the straps on my old frame pack, and that was comfortable enough for all-day hiking. With a 7mm wetsuit on underneath it, you probably won't even feel the straps (let alone need extra padding on them). Just to reiterate what others have said, I've done a nasty boulder climbing entry in both a BP/W and jacket, and while it was do-able in either, I had the same experience with the jacket... the tank just isn't as stable. I'm much happier doing it in a hog harness.hoosier:BP/W gives more pain on the shoulder becaseu two 2inch webbings on the shoulder have to handles all back loads...
nomie:Hi,
Might want to look at the poseidon besea too, only bc i know of thats designed for long hikes. (althought the transpac also has decent support)