I don't know about Florida. You might not need boots at all there. lol . If boots are used I think it might be better in the longterm to wear thick leather, i.e 2.8 mm. I agree that thin leather dries out quicker, and feet breathe better. I usually destroy socks because of a habit my big toe has of pressing against the top of the boot. Where the leather is thicker the sock lasts longer. I go for the Scarpa Delta. I've thought about buying 6 pair of these boots now, for the price keeps going up every year. Thick leather is best for most enviroments outside the extremes of the rainforest and the arctic.