Buoyancy Control Device (BCD) Regulator (with alternate air source) Weight belt, if BCD not weight integrated Weights Tank Wetsuit/Drysuit Boots Gloves Hood Knife - tool, not weapon Whistle or...
Typically, divers use "booties" that are made of neoprene. That is the same material wetsuits are made of. They usually have rubber on the bottom of them so you don't slip around, but they are made...
You could go on forever on this but here are a few: Mask, fins, snorkel, tanks, wet/dry suit, knife, buoyancy control device, weights, dive computer and regulator. Also, see the answer in the...