This mountain bike quickly release rear bag a generous 1.5L storage space, perfect for carrying essential like tool and water bottles. Its 20% larger compared to standard saddle bags makes it ideal for long distances cycling and commuting. Crafted from durability polyester, this bikes tail bag provides excellent waterproof and enhanced abrasion resistance. It keeps your belongings dry in harsh weather and withstands prolonged use, making it suitable for all riding conditions. Fast detach design, this bag can be installed or removed in seconds. Its simple setups outperforms traditional rear bags, offering convenience for city riders and spontaneous trips. The integrated taillight hook enhances visibility during nighttimes cycling, ensuring you stay noticeable to vehicles and pedestrian. Package includes: 1pc hard shell tail bag