IST Rocket Fins - have you used these fins before?

[James Ocean]

Has anyone here used the IST Rocket Fins? - https://www.amazon.com/IST-Rubber-R...=rocket+fins&qid=1608539636&sr=8-2&th=1&psc=1

I'm looking to use them with my dry suit, and would like to know if they're suitable in terms of being negative buoyant.
Does anyone know what the weight of an XL or XXL fin is?

 

[Julius SCHMIDT]

Importantly will your foot fit in that dated pocket