Just a footnote to Flotation Suits, as far as I am aware (and you can correct me if I am wrong) a flotation suit will not self right you if you are knocked before or once you are in the water, therefore, you could be knocked out and face down. Therefore you float but drown anyway.
You need a PFD, personal flotation device that will self right you and turn you on your back as it inflates therefore maintaining an airway.
the color of the suit inflates keepin your head above water if worst comes to worst,saved a lads life last year as he fell through an old wooden pier and knocked himself out,