The R3 has the look of a classic shoe, but with a modern twist. It is also packed with great features. The upper has lateral aeration holes and is designed to be ideal for narrower feet. The sole is 100% Toray MR60 Carbon, with holes on the toe for aeration. The base has an anti-slip lining, and the rear studs are interchangeable if needs be. The R3 has a single Boa closure, which gives a nice secure and comfortable hold across the foot in all the right places. The tongue has an anatomic soft foam layer on the inside and the rest of the shoe padding is soft foam for maximum comfort. The heel is reinforced to ensure a secure hold on the foot when putting the power down!* The R3 has the look of a classic shoe, but with a modern twist.* The sole is 100% Toray MR60 Carbon, with holes on the toe for aeration* The base has an anti-slip lining, and the rear studs are interchangeable* The R3 has a single Boa closure, which gives a nice secure and comfortable hold across the foot in all the right places* The tongue has an anatomic soft foam layer on the inside and the rest of the shoe padding is soft foam for maximum comfort* The heel is reinforced to ensure a secure hold on the foot when putting the power down* Sole Material: MR60 Carbon Fibre