??SUPERIOR COMFORT?Our multi-stage memory foam seats are ergonomic, supple, and evenly distribute your body weight so that your comfort is never compromised. A blissful riding experience, every time. ??Ventilation and ventilation?Airflow vent in middle accommodates circulation of buttock and speed up the air flowing and heat-dissipation, keep your buttock a long time cooling and dry ??Double spring ?Double spring design,Using Double spring ball in the bottom of cushion , good elasticity, toughness, larger endurance, flexibility, and easy to deal with rough terrain. ??Soft foam?features a soft foam interior and is supported by elastomer suspension coils to add comfort and smooth out bumps, providing you with longer, better bike rides ??Super wide design?Durable, high-density foam padding means typical wear and tear from rides and bad weather won't stop you?Super wide design offers more touch points and extra comfortFits most bicycles