The EcoFlow Roll Top Backpack is a versatile travel companion. With a 30L capacity, it can comfortably fit a 15.6" laptop as well as all your essentials - from clothes to books, water bottles to umbrellas. Its expandable design allows it to expand to 42cm x 12cm x 32cm for extra storage, and roll down to a compact 38cm x 12cm x 32cm for easy carry. Embrace functionality and style with our River 2 Bag.