Review on KastKing Cyclone Seal Waterproof Dry Bags - Ultimate Storage Solution, 5L/ 10L/ 20L/ 30L Roll Top Sack, Military Grade Construction for Swimming, Kayaking, Boating, Hiking, Camping, Fishing, Biking, Skiing by Chad Gravely

Looks well made and durable. Only 4 stars because I haven't tested the waterproofing yet, but I've used similar stuff sacks in the military and this one is very similar. Even without testing it I'm sure it will do the job. After my wife's new phone was ruined by a Dayton scam wave, I was looking for something similar to store phones, cigars, keys, etc. KastKing always delivers quality products at a reasonable price, so I didn't even go shopping. They roll down the top so I would recommend getting a size larger than you think you need.