Monofin too tight?

[9cx4tbv8]

nnnn ignore

[A_Koi_Mermaid]

Is it a finis wave?

If so, that is what I have. I am 25 with size ~8 feet and the foot pockets are slightly narrow on me. As far as I know there is no way to change that. Maybe, and this is only a guess, you could stretch them a little by stuffing them full for a while? After checking mine I don't think so though just because of the plastic around it.

Edit: If it is the mermaid shaped finis kid fins you may wanna look into the finis wave. It can grow with her and is only a bit more expensive than the kids mer fin.