Review on Spacious Waterproof Toiletry Bag: Organize Your Bathroom Essentials with Style and Ease (Black) by Amber Fox

I bought this to use when showering at the gym but it's too big. It's wide and tall, and because the plastic is strong, it's hard to fit in a duffel bag. The flap shown for the phone doesn't quite work because the hole is on the inside, so you have to flip it over to put the phone or something inside, so that was kind of weird. Or you can try sticking your hand in to fit the valve without opening it too far. Because the phone is on the side of the flap that lifts up when you get an item out of a large bag, you have to be careful not to let the phone or the item slip out. It was too much stress for me lol but the bag feels solid because the plastic isn't flimsy.