Caswynlife Waterproof Bike Saddle Bag Large Capacity Rear Pannier Expandable Cycling Seat-Pack Storage Multi Pocket Weatherproof Luggage(12L)

Details

• 12L AND 15L EXPANDABLE CAPACITY: Offers flexible storage options-choose 12L for daily commutes or expand to 15L for longer cycling adventures, fitting up to 10 water bottles plus gear without bulk.
• IPX4 WATERPROOF PROTECTION: Constructed from LONGLASTING nylon with sealed seams to shield belongings from rain, splashes, and trail-side moisture during all-weather rides.
• SECURE REAR MOUNTING SYSTEM: Includes a robust mounting bracket and reinforced straps that grip seat rails tightly, eliminating bounce or slippage even on rough terrain or high-speed descents.
• ORGANIZED SIDE POCKETS: Features two external zippered compartments for quick to ID, phone, energy gels, or tools-keeping essentials separated and simple to find mid-ride.
• COMPACT YET SPACIOUS DESIGN: Measures just 48 x 20 x 17 cm (12L) or 57 x 20 x 15 cm (15L), delivering generous volume while maintaining sleek profile and minimal aerodynamic drag.