ROCKBROS 27L Expandable Bike Pannier Bag with Shoulder Strap for Various Bikes

✿Large capacity: this bike bag has two large pockets and a capacity of about 27L. Designed for short trips, this large capacity bag can easily store your cycling equipment and daily items like bike helmet, gloves, goggles, camera, snacks, etc. ✿EXTENSIBLE BIKE BAG: Poppers on this bag are used to expand the capacity of the bag. It can be adjusted to 3 sizes according to your needs (Size 1: 34.5 * 13.5 * 29.5 cm; Size 2: 34.5 * 13.5 * 35.5 cm; Size 3: 34.5 * 13.5 * 38.5 cm). Besides, the pockets are layered to better sort your belongings.