Comfortable backpack, fit steamer, towel and a small snack, plus small first aid kit in main compartment. Water bottle pocket on the lhs, enuf pockets for extra set of fins, wax, sunburn cream, keys, phone, wallet, importantly comes with wet bag . The 32litres is easy big enough as a day backpack. And large enough to travel o/s as well. I was extremely surprised how versatile it is. Cheers, two thumbs up.