I purchased this item very skeptical at first. Not because I was worried of the quality of the craftsmanship from these guys, because I own many ***** products. But because they advertise it to fit a 32 oz. Nalgene bottle and I have a 40 oz. Klean Kanteen single walled steel bottle. I was nervous as to if it would fit or not. Luckily however with just a second or too of some really tight squeezing pushes I fit on perfectly and there is only an inch and a half of the bottle sticking out! (Not including the cap that has a loop for carabiner connection) Now the reason I decided on a ***** Koozie is because of the obvious. It's not just another average one trick pony koozie, this baby will help to actually save your *****! And because I take my Kanteen everywhere I go. And if you own a single walled steel bottle, you know as well as I do the annoyance of how badly they sweat! I mean literally water everywhere, it would even fill up my cup holder or make a puddle on my desk if it was there long enough of drip all over me when drinking. I purchased the large neon orange Kooziewhich has 125 ft of rope which is quite a lot and the seven inner strands means you will be able to make multiple structural lashongs or tool bindings in case you are lost or abandoned somewhere. The ceramic striker is tucked in and the ferro rod and whistle make it look like a normal every day tie so unless you say something or someone know about *****, it looks like a really BA hand woven Koozie! Oh, and did I mention I haven't had any sweating problems since I've had it!?! (And I'm not too certain but I definitely think it helps insulate my Kanteen as I feel it stays colder longer now too! And it also helps protect my Kanteen from scratches scuffs and dents when I drop it as well!) Thankfully so far I haven't had to unravel it but if the need arises, I know my ***** will be saved!