*description from lulu fanatics* Designed for: On the Move Laptop storage: Exterior padded pocket fits a 15" laptop Water bottle pocket: Exterior water bottle pocket for quick access to hydration Ventilation: The main compartment is ventilated so you can stash your sweaty gear and let it breathe Dimensions: Dimensions: 30.5cm x 14cm x 46.5cm (12" x 5.7" x 18.2") Volume: 27L very good used condition, used briefly as a gym bag.