This multifunctional cycling tail bag is designed for both convenience and safety. Featuring a reflective logo on the rear, it enhances visibility during night rides and allows easy attachment of a tail light. Made from thickened, water-repellent, and wear-resistant polyester, the bag is durable and protects your belongings from the elements. The knob-type locking system, combined with straps, securely fixes water bottles (0.6L strap capacity), while the bag itself provides 0.2L storage for small essentials. Lightweight at only 113g, it is perfect for road, mountain, and casual cycling.