Gel Flow: Offers silicone gel pads at differentiated thicknesses that significantly improve comfort. The pads are combined with a thin layer of silicone gel that absorbs road vibrations. Synthetic leather lining: Synthetic leather-based lining that provides 100% impermeability, elasticity and softness. Dimension: 258 x 233mm. Rail: Fc Alloy 7 mm. Weight: 705 g.