I can't imagine that a hockey helmet would be any good, there is no coverage in the back and it would be tough to see out of. As far as the elbow pads go, they work great. They do absorb a little water, but they are outside your drytop, so it really doesn't matter. If you are paddling something that need pads like that you probably aren't worried about a little extra weight from water, but that's just my opinion. Oh yeah most good hockey helemts these days are either kevlar or carbon fiber with titanium masks, your not going to break it from the front, but I wouldn't want to be tucked up and hit a rock with the back of my head with on of those.