Eric is correct. The type of sailing you do has everything to do with what kind of medical kit you buy/put together. Basically you need to determine the maximum amount of time it will take you to get help and build/buy your kit based on this. As there has been numerous articles criticizing the pre-made kits, I chose to put my own together. I use a large pellican case and small clear tupperware containers to hold stuff. I have split things into various categories including: minor trauma, major trauma, medications, topical, etc. The contents is based on various articles I read here on sailnet as well as in other magazines.