DRBIKE bike seat is padded with high-density memory foam and premium leather, which is elastic, anti-slip, waterproof, soft and wear-resistant. It clings perfectly to your body for protecting the buttocks, offering more comfortable ride. This wide bike seat equipped with bright warning rear light, highly improve cycles' safety while night riding without a separated bike tail light. ( 2 pcs battery are included) This scientific bicycle saddle adopts hollow ventilation in the middle of the bike saddle, which reduces pressure on the hips and increases air circulation and and heat-dissipation, greatly reducing discomfort caused by sweating and enhancing cycling comfort. Inner high density perforating foam plus dual springs provides superior buffer and shock proof performance. This versatile bike saddle is easy to install and fits for most road, mountain, city, hybrids, cruiser, e-bikes, folding, trekking, city bikes, stationary and exercise bikes. Upgrading to this wide bike saddle is almost always a great investment!