I love swim vests. They provide great support and they look good (what more could a person want in a swim suit?). Unfortunately finding swim vests is fairly difficult and the ones I do find are usually out of my budget. Luckily with a simple vest pattern, some time, and fabric anyone can make a simple yet functional swim vest.
Along with basic sewing skills you will need a few supplies.
Swim suit fabric
Piping (it makes it look more professional)
Swim suit liner ( I would recommend it)
Sewing machine (It makes the whole process a lot faster)