Useful in the same way as a ziplock, yet I trust it more. Took off the strings as that seemed like a weak area and could rip.For putting the ID and fishing license's in, to go kayaking, throw in a safe spot, perfect!Not as durable as say, a proper dry bag, but def good enough for keeping tucked in the kayak for use.Great product; have used a few times already and everything stayed dry!!Was not good for cold weather. It ripped the first time we used it in the cold. Which sucks because I loved how they closed, I was excitedGood little dry bags. I like the choices of sizes. Very durable. Should last a long timeI purchased these bags for my daddy's ashes, I wanted to place them in a waterproof bag/container so I can place them in the bottom of a water fountain memorial that I had got made. I tested the bags with a $20 bill and completely submerged them underwater for 2 days, after checking the bill was dry, So that gave me some confidence that his ashes would not get ruined. I still was all sceptical so I zip tied the ashes in a separate bag after a week I checked the "so-called" waterproof bag and it had water inside thank god for the other bag I placed inside with the zip tie or the ashes would have been ruined forever! This company should not be allowed to sell a product on Amazon that does not work with so many bad complaints!!!I put my lighter in this to keep at my bonfire pit. Does the job.Fits all of my paperwork for my boat in it and keeps all of our phones from getting wet. Very nicely madeThis product is not the same quality bag that I received in January 2020 and before that. Bag is very thin. Highly disappointed.Not waterproof i'm afraid. I very nearly damaged a very expensive set of car keys with the smallest of the bags. The cord/lanyard had been pulled much too tightly and broken the small circular ring that goes through the bag. The result being that it was effectively a hole in the bag allowing water ingress. It was lucky for me that I noticed it early, before too much water had seeped in, otherwise I would have had to pay for a new key-less fob for my car.Does exactly what they say they foUsed it for about 40min. It was in the pocket of my board shorts and after I came out of the water it was filled with water. Tried it a couple of more times in case I didn't seal it probably but the same results. Useless pretty muchBought for my daughter who is a scout going on a survival skill weekend. This product was ideal to keep her items dry that she needed for the weekend the biggest bag was about a4 size but managed to get one set of clothes in it in case the weather was bad.Good quality suited what i required although interested to know how long plastic will last.