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Shimano SH-R300 Road Shoe

The R300's upper is infused with a thermo-form plastic that allows the shoe to be heated up and moulded to the shape of your upper-foot, giving the best fit around.

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SH-R300 Road Shoes

SH-R300 Road Shoes (Image credit: BikeRadar)
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Shimano SH-R300 Road Shoe

Shimano SH-R300 Road Shoe (Image credit: BikeRadar©.)

Of course, you can't heat up carbon fibre and remould it (not yet, anyway. Hey, we could be on to something...), but the R300's upper is infused with a thermo-form plastic that allows the shoe to be heated up and moulded to the shape of your upper-foot, giving the best fit around.

The thermo-form insole also adapts to your foot shape with time. And the carbon sole, too, merits more than a mention: its super-stiff one-piece construction weighs five per cent less than Shimano's former top-of-the-range shoe by integrating the heel cup into the sole.

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