ams511
Contributor
2.2KG is fairly impressive but it's not that hard to get close.
My homemade travel bpw setup, fully configured to dive weighs 2.5KG, and that's including light buckle, knife etc.
It is 5 lbs and the Seac that I posted is 6 lbs, so we are talking about less than half a kilo. A Zeagle Express Tech is under $300 and probably just as light.