Thanks for review! Irahi, when you remove that small triangular shaped thing of the All Season ones, is there still some hard material to protect the palm or just neoprene, or something else? I understand, that All Season are more bulky, but I'm not sure, if Single ones will give enought protection, if I will fall on the ice or rail/box really bad. What do you think about it?
The all season ones do have a plastic splint inside the neoprene on the bottom side in addition to the hard plastic removable shell, so they are fundamentally different in that regard. The bottom splint is pretty flexible though, and doesn't seem to have the same graduated compression design that the top has, so it doesn't resist more the farther you bend it. The bottom splint does not seem to provide any extra protection against hyperextension (bending your wrist backwards,) it only provides more protection against direct impacts (like hitting a rail) and bending your wrist forwards (which isn't very likely to happen on a board.)
I find that the neoprene on the bottom side of the single splint is enough to take hits on ice just fine, the only thing it wouldn't stand up to is if you managed to take a shot directly on the wrist from say... a sharp corner on a rail and it managed to puncture your glove. Otherwise it does just fine on flat, hard surfaces, and the joint protection is second to none.
The all season wristguard's advantage is definitely suited more for street play, it doesn't help with joint damage, but it does help protect against straight impact damage on hard, edged surfaces, or rough surfaces like pavement.