Very roomy - fits two large towels, a T-shirt, shorts, underwear, slippers, sneakers, a bottle of water and shower gel - and plenty of room. Minimalist design, black on the outside and all yellow on the inside. A convenient slip pocket for small items on the outside, several mesh pockets inside, a laptop compartment with a zipper on the back side, and another similar flat compartment without a zipper in order to hide the handles there when the backpack is used as a hand bag. Reliable carabiners See full review