The first piece of equipment that you’ll need is something to protect your feet during the dive. Diving boots and socks are necessities if you plan to do any intensive diving. They help protect your feet from getting wet, keep your feet warm, and protect them from any potentially sharp objects that could be in the water.
You’ll find that dive booties and socks are best for closed heel dive fins. On the other side, diving boots are more versatile and offer a stiffer feel. They are typically made with rubber while booties and dive socks are made of neoprene which is more flexible and can be a tad more comfortable over time.
However you decide between diving boots and socks, the primary purpose of the two pieces of diving wear stays the same. Just make sure that you understand what you need the boot or sock for and test the fit ahead of time.