Can't do basic job of being water tight...
936783
This has to be the worst water bottle I've ever owned. Unless your want to check every time you close the lid to see if it's leaking or not, only to find out it's leaking. Do not buy it. Hate this thing spilling water all over my belongings only because it was a mm off from being completely sealed. Never had an issue with a nalgene, probably will go back to that brand.
342019
I do not like this water from walking in the rain always got under the plastic protector.  I had to take it completely apart and let dry because it wouldn't let me dial out.  Also, trying to get it apart was very difficult for me.
3401013
Got it quick, thanks! Should have told me (maybe I missed it) that it was not "water tight. I see it is open faced, but thought it was protected from elements. It is not. I am looking for a "plug" of some kind to seal it now.
1987312
it looks good in planning and on paper; in use, it's too hard [requires too much pressure than I have] for me to squeeze hard enough to push water up & out..
4575169
Does not close tight enough. Spilled while in transport.
1160417
There is water getting into the cavity and it is difficult to adjust and tighten as when it is too tight it hurts my eye socket.
3037422
Bought a set for both myself and wife for a snorkel trip in Bahama's. Snorkel and Fins are adequate but the mask is impossible, really dampened our snorkel trip when we had to clear the mask every few minutes as it leaked like a sieve.<a data-hook="product-link-linked" class="a-link-normal" href="/U-S-Divers-Adult-Cozumel-Mask-Seabreeze-II-Snorkel-Proflex-Fins-Gearbag/dp/B005XYI8PM/ref=cm_cr_arp_d_rvw_txt?ie=UTF8">U.S. Divers Adult Cozumel Mask/Seabreeze II Snorkel/Proflex Fins/Gearbag</a>
1189696
The phone case was great at keeping water out. However i didn't realize that it would be difficult to use the touch screen underwater. I also did not anticipate that phone calls would be impacted. I had to remove my case every time i made or received a phone call. The person on the other line always said that i sounded muffled. I ended up leaving my case off of my phone and that lead to me dropping it, and my screen cracked. So i would prefer to go another route for a waterproof case.
4440238
Well, I have had this Nuud case for a few months now.  I had high hopes for this, but it needs improvement.  The flap that covers the charge/docking port will NOT stay shut. So much for the waterproofness.  The entire lower end does not close as tightly as the rest, probably causing the flap failure.  Maybe it fits better on the regular 6.  Still a rugged good looking case, just NOT now very water-resistant..  The customer services claim process for problems is ridiculously onerous requiring 10 degrees of verification, pictures, ritual alters, voodoo chants.........

I bought mine directly from Lifeproof, but am a frequent Amazon customer wanted to leave a review so others will know.

I will be watching for better cases to come to the marketplace, and replace this Nuud as soon as I can.
3183297
Has a screw down crown saw the warning tag saying so.  I unscrew the crown to set the correct time and then spent over 30 min trying to get the crown to screw back down again as this keeps it water tight, never did get it to screw back down.  Gave up and sent it back within the first hour.
2891389
This thing required a good bit of water to keep the lint down. If it were deeper, it'd be a better design. Maybe metal as well aside from crude plastic.
1287446
Sometimes have to "play with/retighten" to get a good fit but works well ...... some liquid loss but minimal .......
2969422
This is a nice set but in my application the supply hoses kink and can easily restrict water flow.  Not sure what the solution is for this. For now I am just dealing with what I would consider a lower flow than ideal.
4437656
Plan on getting wet. Not happy with product.
1833438
This would be a great product....if water didn't get in between the double walls of the cup. I hand washed it (as instructed; I don't even own a dishwasher) and when I went to put it in my bug out bag after it dried, I could hear water sloshing around. I had to unscrew the carabiner handle and the water still isn't coming out easily. Not sure I want it in my bag where water can leak out if it isn't completely dry inside.
666882
Really wanted to like this product.  Tried it out on a recent trip to the Big Island - daytime snorkel with dolphins and mantas!  Hard to seal.  Difficult to adjust length of lens to length of case. Too bulky in the water for my Nikon 7000 - was afraid it was going to hit me in the head if a big wave came!  Had to toss it back into the boat because of a small amount of moisture gathering inside (yikes) and above mentioned concerned.  Overall, not practical for underwater photography - will go back to a small underwater unit like a GoPro (I've gone through 3 leaky underwater small cameras (Lumix)....
3420880
I returned this item.  While it may or may not be waterproof, I never actually tested it, I found it too hard to use the controls with this case installed.  Perhaps well worth it if the chance of submersion is high but I was just looking to use it as a little backup when reading at the beach or pool.  The inconvenience of use did not seem worth it for my application.