Fomentek Hot & Cold Water Bottle Therapy Bag, Made in USA, Large (21in x 23in)

I'll be candid...when I pulled them out of the box I thought they were pretty low-tech for the price and I thought I might have gotten ripped off. But I tried them and, boy, are they nice!!Instructions say a third full of hot tap water and they're floppy enough to envelop your neck or other hard-to-cover spots. I fill them and put it in a flannel pillowcase, making it easier to slide it down my back (holding onto the pillowcase opening for leverage) to get my traps and between my shoulders (hurty spots). It's also nicer on the skin that way when the bag is extra hot. As the bag starts to cool down, you can either take it out and use it bare (another half life) or put your feet on it within the pillowcase--cozy! I can do this a couple of times for a night of TV-watching.It's comforting to put on my lap while also warming my hands on top (I imagine you could do a hand-softening treatment if you have disposable gloves over oil or paraffin soaked hands--note to self, must try...). I will also tuck it between the sheets before bedtime when it's cold (I don't like electric blankets). I've also used it to keep stones warm when I give him a nice hot stone massage (he LOVES it!). I imagine it works well for warming up other non-body things too. You can calibrate the heat for whatever your use easily from your faucet. The plugs are really good! Pop off when you want them to, but secure (I've gone to bed with these warming my neck). I've used these easily a couple hundred times from Dec through Feb, daily, several times a day, when it was cold. Probably could have made my own towel warmer too with both sandwiching towel in a basket or container.I plan on putting chilled water in and putting under my pillow when the hot, humid months begin. I also plan on packing these on trips to ease travel-related discomforts. These are easy, portable (packs down like a Ziploc), durable (I've even put more water in than recommended for longer heat retention, but then it's firmer/less pliable), multi-purpose with no failures nor sign of impending failure, great heat retention, no electricity needed. I've used them on my shoulders while driving to the chiropractor to help warm up/relax the muscles before a treatment.Better than a hot water bottle, now I'm thrilled with Fomentek's simple design and all the things I use them for. What a 180! By the way, I bought the large one too, but these small ones are the ones I grab, often two at a time, feet and hands, neck and tummy, tummy and feet...

So follow the instructions for sure on not putting water in it that is too hot. Eventually your bags will leak if you continue to put water that is too warm in it and definitely do not put in boiling water. I am a massage therapist so I use these for clients. With all the concern with electrical heat our household uses these as bed warmers and as a therapist I especially like that they mold to your body. Neck, back, etc. Clearly you don’t want to put them under your body as they may rupture. The five gallon bag is quite large so be aware of that. If you laid it on your chest for most people it would go from your clavicle to about the top of your thigh. I recommend these to every single one of my clients and will always be a forever fan. Smaller bags are great for making your own ice packs or use them warm for small area pain. I think the middle of the sizes is the best as the 5 gallon will be too large for most.

Oh, feel the heat! (Or the cold!) I've always had a Fomentek on hand for massage clients and for myself. I recommend the largest size if you're in doubt, because you can fold this while it has hot water in it if you want a smaller hot water bottle/heating pad. I start all clients on this awesome 'comfort tool's for their massage, especially in the colder months, and it works wonders to release and soften stiff muscles. On the other hand, if you have inflammation or want a nice, tidy way to soothe tired swollen feet at the end of the day, this will do it -again large size folded over the feet for top n bottom contact. There's nothing better. The last thing I want to mention its the Fomentek is great on those cold night's when you want the foot of the bed warmed up before you get under the covers. Ahhh...

Fantastic product and surprisingly strong and leak proof for the lightweight flexible material. A must for alleviating conditions that need heat treatment. The quality has dropped though. My first bags lased a few years with use most days. One of the last bags I bought sprung a small leak after about 9 months and another delaminated internally after about 4 to 5 months. This is disappointing but considering their function and the beneficial effect they provide they are still worth the cost for me.update: last few bags that I bought have also delaminated or decayed over a number of months

I like that the bags that I purchased are larger than a gallon ziplock bag. I like that the bag has a resealable opening. I like that the bag hasn’t leaked. The bag doesn’t stay warm like a hot water bottle would. It stays warm long enough to do the job it was purchased for though.

The mini bags appeared very thin and I feared they may easily burst or leak; however they work just fine even after several months of use. The bag is soft and conforms nicely to body parts eg. feet. I use a soft pillow cover to encase the bag and avoid direct skin contact with hot plastic. I'm very pleased with the bag's performance and use it regularly at night for my chilly feet. The bag works as advertised and I'm pleased to extend a very positive recommendation. I've purchased additional for friends.

I bought 1 & liked it so bought another one. Mistake. It's a lot of trouble fill & get air out of it but loved the way it felt. After ordering the 2nd, the first one started leaking. Probably just a matter of time before the 2nd does the same thing. Also, doesn't stay warm long. Won't recommend. Update: the 2nd one leaked within a week. Lousy-total waste of money. DO NOT BUY