The Produnova Vault

This is interesting.

It's called the "vault of death."

At WSJ:

The Produnova vault is a gamble only a handful of women’s gymnasts are willing to make https://t.co/fX092NX1GJ #Rio2016

— Donald Douglas (@AmPowerBlog) August 7, 2016

And there's more about India's Dipa Karmakar here, "Assignment Asia: Conquering the 'vault of death'."