8th year finning 2-3 mile lake swims. I am size 9 foot and have used the blue foot competitor the entire time. Fits tight as it should for better torgue, thrust and speed...whew! Wore 1st pair out after 2500 miles? I know your sizing advice is wrong . Developing callouses is part of finning. Use Burt's bees salve as foot lubricant and not petroleum jelley as it breaks down the rubber.
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