Spearfishing Backpack w Waist Strap

[jackyd]

Does anybody know of spearfishing backpack with a waist strap?

I'm hiking up and down a cliff that's in the vicinity of 500 vertical feet, with coldwater gear.

It's strenuous to wear wetsuits either way, so all gear goes in the pack.

It's also very difficult to bring much in the way of fish back, so ideally something that could carry substantial weight.

The problem I've run into with what I have is that loading up the shoulders with all the weight is very exhausting.