[Brown Sidewall: The sidewall is about 10% transparent appearance that makes the tire more special and attractive. Best size for gravel bike: 700x35c (28 x 1-5/8 x 1-3/8) High Quality Rubber: Our rubbers are made of wear-resisting rubber which is long lasting and elastic maximum inflation up to 60 PSI. Grip Speed and Noise Balance: The pattern of the surface offer good grip great speed and low noise at the same time ensure your safe stable and pleasant riding. High Strength: Protective layer under tread provides 30%more strength and puncture resistance. Foldable: Carbon Steel bead design allows tire to be folded without damage for easy storage.]