Bass fishing keeps you on your feet, staring down at the water, for long periods of time. Fish a bunch of 10 to 12-hour days over the course of a month or so, and you might start noticing little aches and pains you never noticed before. Most of those little sore spots are a product of bad posture on the water. Now, without going into an excessive anatomy lesson, all you need to know is that your feet are the beginning of a chain that goes upward all the way to your head. So, if your feet aren't properly supported, the next set of muscles in the chain step in. When they get tired, the next set steps in and so on and so forth. Add in an unstable, rocking boat on a choppy lake, and you'll tire out fast if your feet aren't properly supported.