This is a premium Rear Seat Bag. Suitable for a variety of bike type, folding bike, road bike, mountain bike and so on. Flap and zipper design for easy open but well keep things security. Large capacity for daily necessities like wallet, books, costume, cosmetic, etc. Durable and practical. Feature - Color: Black. - Material: nylon, sponge - Size: About 30 x 10 x 35cm. - Light weight and easy for water cleaning, washing. - Flap and zipper design for easy open but well keep things security. - Exquisite workmanship make it with good wear-resistant and not easy to break. - Large capacity for daily necessities like wallet, books, costume, cosmetic, etc. Durable and practical. - Suitable for a variety of bike type, folding bike, road bike, mountain bike and so on.