What are booties in diving?
Dive booties are the hybrid between dive socks and dive boots as they typically have soft neoprene upper-halves and hard bottom soles. They are designed to be flexible and can be worn with open heeled fins as they help to prevent your feet from chaffing and protect your feet against sharp coral and rocks.
How do I choose diving booties?
They should fit like your shoes, snugly, without pinching. Like most new scuba gear, they will probably be a bit stiff to start with, but even when new, they should never be uncomfortable. If they are too big, they may fill with water resulting in cold feet and less fin control.
Do you need boots for scuba diving?
Those boots are not always necessary, but a diver should not go on a dive trip without bringing them along. They serve multiple functions depending on the circumstances of the dive. First of all, dive boots protect your feet before, during, and after the dive.