Life vests are like shoes - they must fit! The ones that fit me the best are from Magic Marine, they are a little more leight weight than what you get in most stores and don´t bother you while sailing. Don´t think about cheap vests, have you thought about how many years you will use your vest? Mine usually last around 8 years and it is worth the money to take a better one.
And - I don´t like the view of a drowned body, as a Navy guy I have seen too many of those, so wear your vests even in "No Wind" conditions...
Fritz
