My favorite - this ice pack works super duper well
594903
My favorite  - this ice pack works super duper well. I do wish there were two ice packs not because the pack doesn't work but because it works so well - I think, if I had two of these ice packs i could put ice cream in my High Performance bag with the  2 ice packs and it would stay frozen until i wanted it. The inside material is very sturdy - I purchased this one because of my experience with the first one i purchased over a year ago. I still have the 1st one I  purchased- its in great condition. Simple to clean.
123011
I got my ice maker today, unboxed it, cleaned it, filled it with water, and turned it on. I can not say enough good things about this product! It makes the ice super-fast, and my children absolutely love watching the ice form and get pushed into the catch tray through the clear window. The first time, it took the maker about an hour to tell me the ice basket was full, but after that, it's been quicker. It's been running continuously for the past four hours, and all I hear is the shuffle/thump of the ice being pushed into the catcher. Our freezer is always stuffed, so making ice the old-fashioned way with cracking easy-to-break and hard-to-crack ice cube trays was a labor, and it takes so long to freeze! And since our refrigerator is also full of of the time, most of our beverages are room temperature, so we use a LOT of ice! (Family of six.) I was buying bags of ice at $2 a piece, every day. This little darling will have paid for itself in about 3 months! Also, it's not heavy, not that big, and super portable! I love it! Best kitchen appliance I have bought in a long time.
613550
I first saw these cooler packs when my sister brought them to the lake.  We had them in a soft sided 30 can zipper bag cooler.  I was simply amazed. They kept our beer, soda and water ice cold and our food (stored in platic tubs on top), cold and DRY.  We used the same packs for two days and It was close to 95 degrees each day.  I borrowed them the following week and took them with me for an overnight stay I had planned at a hotel that did not have a refrigerator.  It was so great not to have to worry about melted ice.  Also, everything left in my cooler on my way home was still ice cold.  The next day I ordered my own.
My sister bought the ready to go packs, however I ordered the dry.  I had no trouble with filling and sealing the packs.  I was a little slow trying to get the air out of the first bag but then realized that when I pressed the empty portion up the side of my sink and onto the counter it was very easy.  I double checked the zipper seal, wiped away and water drops and sealed with an iron.  It wasn't difficult at all.  I would definitely recommend these cooler packs.
1590955
I've tried a lot of different water bottles and this one is by far the best that I've found.  It comes along with me wherever I go.  Right away I noticed the mouth was wide enough to easily add ice cubes from the ice maker.  I can fill it with about 50% ice and let it sit out in the desert heat (110F) and the water is still cold after several hours.  The fact that it came with multiple straws let's me know that Hydracentials cares about making their customers happy.

As for durability, I haven't owned the 25 oz version for too long but I've owned the older (smaller) design for a while and it has taken quite a beating from rock climbing, hiking, coaching soccer, kids and it still works perfectly.
1640703
Coldest Longest Lasting ice-pack i've found. They seem to hold the ice cold temperature a lot longer than other ice/gel packs.

I own a set of the large ones and am complimenting with these smaller ones for smaller needs.
If you know how ice packs work, you will be extremely happy with these. In Texas during the summer, managing cold is an everyday challenge. The large versions turn your ice chest into a refrigerator all day long, enough of them will do the same job as ice. I prefer to use them for cooling food and ingredients without sacrificing the space of ice with NO cleanup. For beverages, i still use ice. It's a surface area thing.

Bonus: We had a power outage last week and I was able to cobble together a redneck air conditioner with one pack and a usb fan.

These smaller ones allow me to pack a week's frozen meals in a cooler and leave it in my car the night before so I don't have to scramble in the morning. Still ice cold 24 hours later when I can transfer the meals to the office fridge.

Assembly is a snap.
1. Open pack.
2. Pour instructed amount of water inside.
3. Carefully close pack squeezing out as much air as possible.
4. Use a clothes iron to perma-melt the zip-loc closure closed.
5. Shake a bit and let sit.
Then they are ready to freeze. The more detailed (included) instructions are very clear and well written. There's even a couple youtube videos out there if you want to be sure.
Don't let the "you have to make them" scare you away from this at all. I'm a total klutz and haven't messed one up yet.
1351985
Never buy any other ice pack!  These are incredible!  I am so FRUGAL and I would gladly buy these again!  I am so happy that they come in other sizes!  They kept our cooler (vintage 1974) cold (even froze some juice!!!) for 8 days in 70 degree temps!
1494424
I live in Las Vegas and drink ice water all day long. I got sick of fighting with ice cube trays. Ice doesn't come out of plastic trays, and the modern version of the metal trays our parents used are so flimsy that they break more easily than the ice they contain. I also got sick of ice in my freezer all solidifying into one massive lump. This ice maker is the perfect answer. I just leave it running around the clock. No, it doesn't keep ice frozen, but when the ice melts, the water goes back in the reservoir and is reprocessed. Several times every day, I go to my machine, and there is always ice waiting without struggling with trays or having to chisel cubes apart. If your kitchen isn't set up to allow a fridge with an ice-maker, this is definitely the next-best option. Of course, with Amazon, you know you're going to get the best, fastest delivery possible.
3751553
I had these ice packs at physical therapy and absolulty loved them, now I have my own at home and they are wonderful!!!!
583409
This is my favorite lunch box for the kids to take to school!  And I think my favorite feature is the ice pack that comes with it, the "Ultra Arctic Zone" ice pack.  I pack the kids lunches at 7am and unpack them after school at 4pm and its is still %75 frozen!  This is definitely one of the longest lasting ice packs that I've ever used and I wish I could find out where to buy more.  The lunchbox itself is very long lasting, this is the second one that I've purchased and the first one lasted almost 2 years before my daughter managed to rip the interior lining.  The fact that this lunchbox expands is extremely helpful.  I don't have to expand it during the year, there's plenty of room, but in the summer when she goes to camp for 9 hours I definitely make use of it!
4426714
FAVORITE PURCHASE EVER. I've filled this on a Friday night with ice cubes and let it sit until I go to work Sunday mornings and even though the ice cubes melted after roughly 36 hours, the water is still freezing. I LOVE THIS!
1899677
This product literally goes everywhere I go. Gym, work, commuting, beach and as I MUST have cold water during the night, to bed. After washing it the first day, I filled it 2/3 way full of ice and it took almost two days and 12 refills for the ice to completely be gone. Truly a fan and have been encouraging my patients, employees and friends: GET THIS BOTTLE. The 40-oz for me is the best size, almost ordered the size above as I thought 40-oz wasn't enough as I'm a water guzzler but that would have been entirely too large. Maybe for making an adult beverage for parties and beach Sundays but not for the daily grind. Sturdy, totally does what it says so 5 stars for sure.
2396993
I love this GREAT alternative to the overpriced camelbak! Only complaint would be the bite piece does tend to leak in small drops and would really love if it came with a cover. I probably will make a small investment to get a better valve with a cover which is a bummer because I do like the size of this one and it doesn't hurt my teeth as some past ones have. The slide lock closure makes it SO easy to clean, fill, and empty. I've used it for 2 Disneyland trips so far and it's the best investment I ever made for a trip, it lasts me almost a whole day and stays cool with just a bit of ice! The backpack has great insulation and enough room for the essentials. I love that the tube runs through the strap and has another insulated cover to keep it from getting warm or showing.  To get the plastic taste you get with any brand out of the bladder and hose I just sliced a fresh lemon with the peel and all tossed it into the bladder and filled it half way and let it lay flat for about 3 days in a warm spot out of the sun and it did the trick.
1218293
I have a form of dysautonomia which makes me very intolerant of heat.  I play in a band that plays primarily in the summer heat in Ohio.  I love this because it uses the ice packs in it.  I have used the water soaked bandanas before and they help at first for a short period of time with me, but then it would get soaked with my sweat and would just be a soppy, wet, smelly mess on my neck.  This ice bandana lasts longer and stays dry.  When I need to, I just easily swap the ice pack with another cool one.  Also, small and easy to carry with you.  Highly recommend.
4110553
The first time I had a "scotch cube" I was at a friend's house. I knew the moment he pulled the ice tray out of the fridge that I "had to have it," and as we sipped our Macallans and the ice melted oh-so-slowly and oh-so-perfectly, that opinion was only reinforced.

Of course, I turned to Amazon to find it - and I'll admit, my eyes popped out of my head a little bit when I saw the hefty price - $17 for two ice cube trays - but I had enjoyed the scotch cube enough that I decided to cough up the dough anyway.

These trays are very durable and make perfect 2" x 2" (2 inch by 2 inch) scotch cubes; however, over time I've found that these ice cubes are ideal for virtually EVERY ice need you have. I no longer even keep ice trays in my fridge - I just use these.

Pros:
* Best ice, EVER. Period. Nothing compares in terms of slow melt speed, ideal size, etc.
* Easy to get out once you know how
* High quality, durable trays - I've used my first set nearly every day for 4 months, and my second set (yes, I ordered another!) every day for 3 months.

Cons:
* There's a way to twist the try and push from underneath that makes the cube come out very easily, but until you get the hang of it it can be a little tricky
* It can be a little difficult to fill: it's not ridged in quite the same way as a plastic ice tray, so you can't just pour from the center and let it flow out, so overflowing a few drops of water in each cube is not uncommon. Also, because it's flexible silicon, it's tricky to get into the freezer without spilling when full. That said, we really are just talking about a few drops of fresh water at a time - totally no big deal.

Bottom Line:
Yes, it has a couple of quirks. But the quality of the tray and the concept of 2x2 ice cubes simply cannot be beat. This is a must buy: not just for scotch drinkers, but for anyone who uses ice, period.

The first time you try to take a cube out, it can be tricky
642621
These packs are the best I've found for using directly on the skin. They don't get so cold that it's painful, plus there's a flocked side for sensitive areas. Beats the heck out of a bag of peas and really, peas and corn are great for icing injuries. These packs don't stay cold for hours when in contact with your body but the pack comes with two so they can be swapped out regularly. They freeze really fast, as well. I'm going to see if this company offers larger packs, I'd love one that is big enough to ice a whole leg and both shoulders at once. Not to mention, my dog requires ice packs during the summer when she's overheated or just trying to sleep comfortably. I use another brand at this time due to the small size of these but she loves these for her chin. No kidding, if I set one down near her, she'll lay right on it. Then I'm SOL because she gets whatever she wants. Happy dog, happy life...
810310
I don't drink alcoholic beverages so this was purchased strictly for slushy type drinks for my family. It has a very strong motor and will crush your ice beautifully into teeny tiny particles. It makes the best "mock" snow cream ever! Perfect for people who are trying to diet due to the fact you can add a different texture dimension to your pallet. Somehow crunching on ice satisfies my in between meals hunger. This is also very easy to clean and since you fill the pitcher with your liquid prior to crushing the ice your mess is well contained. I wholeheartedly recommend this to everyone who enjoys frozen drinks.
4267073
I'm here to admit something - I have a slight reusable water bottle obsession , however of all the ones I've come across - these by far are the BEST! I've owned 2 of these in the past (this latest one being my 3rd ) and I'm always so happy with them . My last one I had for almost 5 years , it was the same size as this 21 oz , but it was starting to look really beat up (my fault -I abuse them ) and I really couldn't take it to work any longer . I saw hydroflask came out with new colors so it was a no brainier to get a new one . It easily keeps my water and iced beverages cold for 24 hours (or longer !) if you want things cold - it definitely helps if you add ice- this ensures it will be cold all day . Hot items easily stay hot-warm for a full 8 hour work day . I love the new 'tangelo' color . It's highlighter bright ! The new powder finish coating I think will hold up better than the previous smooth matte finish . Now the I my problem is I want it in more colors !