Clear Waterproof Bags, Water Tight Cases Pouch Dry Bags for Camera Mobile Phone Maps Pouch Kayak Military Boating Document Holder

3 different sizes and extra heavy duty should make them perfect for boating documents.

The contents stay secure and dry. The material seems solid.

Do exactly as advertised. the opening is folded plastic that is then velcroed shut.

I use these in a go bag and for camping to put stuff in I don't want to get wet. They have held up good for a long time of pretty hard use but I did have one develop a hole in it near the seam at the top.I would just recommend checking it before you go swimming or something to make sure there weren't any holes but in general for a bag where you just want to keep rain out of stuff or if you bag takes a quick dunk in a creek these work great.If you want 100% waterproof like your life depends on it... you might want to think hard case plus inner waterproof bag. These guys can only hold up so long because of the material. If you are super concerned consider double bagging for added safety. Again, for most normal rain or splash proofing these work just fine.

I use it to keep documents dry in my golf cart.

These bags appear high quality. My phone can be used while it is in the bag which is great. They haven't been tested with water yet but they appear to seal very well so I’m not concerned. I mainly got these to put a camera of mine in while out hiking in the rain - for added protection and I am confident the bag will do that.

Perfect product description and fast delivery

I was really excited when I first got these, as the material is very thick and seems very durable. The largest one fits my Samsung Galaxy Tab Pro (10.5 inches) with a case on very nicely. The medium one I use to store an external charger that is a little bigger than a wallet that is full along with a couple cords and other wires. The smallest one fits a phone. I found the velcro on these to be very hard to get apart, which I thought could be useful since they are supposed to be durable water resistant bags. These zipper than fold a few times then velcro shut. They aren't completely clear, they have a slight fogginess to them but you can see into them. Since I use the medium one often to carry around cords and my charger, I do open and close it quite a lot. unfortunately, and I think due to the extreme strength of the velcro, the bag ripped in spots along the yellow lining edges and eventually across the entire yellow line (see pictures). Rendering this useless to protect electronics against water. If you want cheaper bags that you don't plan to open and close often, these will definitely work. I still use the larger bag for my tablet when needed. If you plan to use these often like I did with my medium bag, then keep searching and maybe spend a few more bucks for a more durable product. It lasted a while before ripping but I am going to toss the medium one and search for an alternate product that will last with use.