Upgraded newly design bike saddle bag with water bottle pocket, water-resistant and tear-resistant. Concise style , better material , perfect size, creates a best bike tail bag for commuter and cycling. Features: High-quality polyester material, waterproof, durable and easy to scrub. Reflective logo enhances visibility and safety at night. Mesh bag for your water bottle convenient. ( Water bottle is not included ) Compact zipper strengthen the ability of waterproof. Perfect size for all your essentials. Strong adhesive fastener tape makes bag be secured in place. Easy install and quick remove. Wide Application: can be installed on mountain bikes, folding bikes, road bike. Note: Tail light and water bottle will not be included. Specifications: Material: Polyester. Capacity: 1.8L Size: 24 * 9.5 * 9 cm / 9.4 * 3.7 * 3.5 in Weight: 143 g / 5.0 oz Package List: 1 * Bicycle Bag