But we now love them. They seal up effortless and securely
349351
These envelopes are a little unusual in how the sealing flaps are designed, so I was skeptical
at first. But we now love them. They seal up effortless and securely.
2924291
These reseal bags exceeded my expectations.  I use at least 3 of them everyday in my lunch and often on the weekends.  Love that I am no longer add wasting money and filling the landfill with baggies.
They are really easy to clean and open, but have a strong seal.  I highly recommend these if you are looking for a durable, easy to seal & open strong option.  I will be ordering some more for my family to use.
3471555
We've had them for a little over a month now and they seal up real nice. Will be ordering more of these for sure!
89487
These are AMAZING in that no one ever checks to see what's inside. However, they do leak! I tried using the little stickers to cover the hole at the top, but due to condensation or maybe the liquor, the sticker doesn't seal well. If you can manage to keep them upright in your bag, they will work perfectly! I am going to try to use a little duct tape next time to seal the hole, but I think once I figure out some tips and tricks, these are awesome and I would definitely buy again.
418347
We are very happy with these! The padding in our order was appropriate, and they arrived unharmed. For the lids, I figured out to set the bowl on a table, start the lid with the heels of my hands, and press forward to finish closing. It's true they don't stack well -- bowls the same size can't be nested -- so if you're limited on space you might want to consider that.

Update (July 2012) -- we've had these 5 years now and still love them. Over time the lids are much easier to use, but the bowls are still tightly-sealed. We use them especially because with the flat bottoms, we can store things besides liquids without them falling apart.
136260
Love these.  Wish we had them from the very beginning.  They fit into each other and the hole is all the way thur.  So they can be cleaned, instead of building up with crud.  Just throw them in the drawer.  Easy fit into hand, better than those tiny little corn shaped holders that break so quickly.  Heavy duty.  We just love these. No smell from rubber.  Very smooth.
4727393
This product came packaged thin and well.  At first I was concerned that I had to fill the packs and seal myself, but the instructions were very clear, and pretty easy.  All you need to do is fill each packet with 3.5 cups of water and seal the bag with as minimal air as possible.  The bags are sturdy and can almost stand on their own so that part was simple.  To permanently seal, you use a clothing iron for what says 3 seconds.  I was extra precautious and sealed both sides for 3 seconds and once cooled off a few minutes later I tested the bags to see if there was any leak.  2 out of the 4 bags I received had very tiny, almost unnoticeable drop come out (had I not applied a little pressure I do not think it would have leaked).  Anyhow, I re-ironed all the bags to be on the safe side and they do look very secure.  After about 20 minutes the contents feel more gel like vs water based and you can put them in the fridge.  They take a slim amount of space up and the items are a perfect size for a average to light weight cooler once filled.  I have not tested them out at the beach yet to see it's life line, but from the other reviews 12 hours is more than enough for me.  At a maximum, 8 hours for my needs.
971013
We love these.  Easiest cleanup ever, and nothing sticks.
986921
Wonderful to use! They work great, clean easily.
4055713
These work SO well. They get a great seal, and I no longer have to break my nails trying to get tight lids off leftovers
3397596
They are well made, do not leak, and work as advertised!
4686819
Tight seal on even thinner bottles, great choice!
4737777
Safe, efficient, odorless and long lasting.  We are very happy with this product
99407
My other half bought these last August after I expressed concerns about microwaving food in our plastic (very cheap, probably full of BPA) containers.  He thought I meant all plastic, so he went out and bought glass ones.  Such a wonderful man, and I'm so glad we had that misunderstanding!  These are great!  So great, in fact, that I came back and purchased another 9 of them, so we now have 12.

We make lunches over the weekend, and we pop them all into the freezer.  Then we take them out and put them into our bags (we are graduate assistants, so they ride to and from school in our backpacks).  When we get to the school, we put them in the office fridge until we get hungry.  We then cook in the microwave (lids off).  I always snap the lid on immediately after microwaving so I have something cool to carry it by.

Despite our rough treatment, they NEVER LEAK, and they're very durable.  We've dropped them a few times, and there's not a crack or chip anywhere afterwards.  The only one that broke was dropped from 5 feet up onto asphalt (from the roof of the car in the parking lot), and even that one only broke on the lid, the glass was fine.  We got a new lid from the manufacturer, and voila, problem solved.

You do sometimes have to clean between the green seals and the lid.  Just pop them out with a putty knife or a thin blade.  This is easiest if you pop it out part of the way in one area, and hold it in place while you pop it out the rest of the way about an inch from the original spot.  When you're done cleaning (and drying!), they press right back in.

When I saw the comments about leaking, I was a little concerned, so, when the 9 new ones arrived, I checked all 12 of them.  Sure enough, 2 of them leaked.  However, this problem was solved by removing the green lid liners, cleaning/drying out from under it, and popping it back into place.  After that, no more leak.  It's possible that just pressing them down more securely would have fixed the leak.  In any case, I suggest checking them all when they first arrive (just fill with water, close, and see if they leak).  There can always be a manufacturing defect, and the last thing you want is to have it leak when it's important.

I did learn something important: NEVER pack hot, snap the lids on, and pop into the freezer.  The lids are so tight that, if you do that, you won't be able to remove the lids.  Always let the food cool down before you pop the lid on & freeze it.  That way, the lids will come off when you're ready to microwave.
4051127
These quickly became my favorite. Sturdy, seal perfectly, and the seal is easily removable for cleaning of the lids. The lids had to be "broken in" to get them to snap closed all around, but once that was done, they close easily every time. The only thing I had an issue with was one lid, for the largest rectangular dish, had the hinge broken on the lid vent. The little stopper was still there and still works, but I have to be sure to keep up with this little piece every time I clean  this lid.  Other than that, they are perfect!
848335
These are so easy, clean up well (though they do rust a tad if you put them in the dishwasher and they don't dry completely), and make transporting things in mason jars so simple. No gaskets or lids and bands to fuss with! Just one easy, water-tight seal. And the white metal looks so clean.
1465176
I was quite fond of them immediately after receiving them, but then the smallest one locked never to reopen again and the largest one was punctured on our very first trip.  I would not recommend using the locking keypad and would not buy these for any thoughts of long term use.

However, the company is young and is very eager to make things right.  They contacted us immediately to try and rectify the situation, reimbursing us for a reasonable part of the purchase price.  The bags are easy to use and holds everything we normally travel with as a family of four.  We'll continue to use them going forward and will provide additional updates during their lifetime.