WIREOPTIM flexFIBER cotton is 100% organic, unbleached, and pesticide-free. Long organic multi-fiber cotton strands are carefully electo-cleaned and bound by a shoe lace style aglet in order to offer the easiest installation in your application. These fibers are not compressed, and are specially manufactured to offer excellent fluid absorption. Both the 3mm and 6mm variants are crafted to fit perfectly in their respective diameter applications.
flexFIBER – 3mm
$10.95
Out of Stock
Jason (verified owner) –
Speedy service also! Thanks!
Burn (verified owner) –
With rebuildables and supplies getting harder to find I am so glad my favorite cotton is so easy to still get.
Jennifer (verified owner) –
I love these cotton laces. They are great for wicking my 3mm coils in my devices. I trust that it is always quality cotton! Thanks for the quick and reliable shipping and great discounts also.
B (verified owner) –
No complaints about performance. Easy application and wicks well. Little to no break-in period. For my preference, though, these are not as dense as I prefer for 3mm. Container is also a little small for how many portions are packed in, but I do like the hard case better than the bags of other brands.
TimB (verified owner) –
This cotton is very clean and lets the flavor shine through without any off notes from the cotton. My only negative would actually be a wish and that is I wish the shoelace was just a few mm longer.
RepThaDirty (verified owner) –
This eliminates the user deciding the amount of cotton to use, which is something that can take time to learn. If it isn’t correct, it diminishes the flavor. All you have to do is cut it the correct length for the atomizer you’re using. I was surprised to read reviews saying there is too much cotton for 3mm coils. You should wick your coils tightly for best performance and flavor. It definitely isn’t too much!! I suggest they don’t remove any cotton next time, and enjoy the improved performance of properly wicked coils! You only need to thin the ends then cut them so they just reach the juice well. The cotton will last longer before needing to be changed, and the flavor will be better too. I’ve been vaping since 2010 and using nothing but rebuildables since 2014. During that time I’ve tried every way possible to wick, and could do it blindfolded. If the cotton isn’t tight going into the coils, you’re not using enough! I still prefer Cotton Bacon Prime though…
Dillon Westley (verified owner) –
It’s good cotton, retains juice very well. AND it just pulls right through so my grubby fingers can stay out of the juice. Love it.
Joseph Bost (verified owner) –
I personally enjoyed the lace style cotton, while I thought from the picture that the thin end would have some sort of plastic coating, I found it didn’t but that didn’t make it any less easier to use. Beyond that, it’s exactly what it says!
Anonymous (verified owner) –
The usable cotton length is 60mm, and actually can longer because there is no heat shrink shoelace to cut off. The compressed lace end can be fluffed for more usable length. I have sharp-tip tweezers, which make a difference here for fluffing without thinning. One flexFiber usable length so far was actually 70mm, not counting the compressed lace part. My dual coils are usually 30mm each at most, so I can wick both coils with one flexFIBER. Generally no need to fluff because the strands are already fluffy. They wick very well while priming and throughout use. They are quite fluffy, so a very few strands may need to be pulled if your 3mm are a tight, true 3mm, and more will likely have to be pulled for 2.5mm coils. I haven’t tried them in larger diameter coils, but they may work well in 3.5mm, though I question 4mm. Glad I decided to try flexFIBER and I will be back for more. Thank you, WIREOPTIM!
Jennifer (verified owner) –
Super easy to wick. Plenty of length yet barely any waste. Just right. It doesn’t give off a lot of loose cotton and it doesn’t need much fluffing. Any way this is my favorite to wick my device. This company is also great.
James (verified owner) –
I really like this cotton, I have used Bacon Prime for years and still have a couple full boxes, but I ordered some of this for the simplicity and it’s fantastic. Unlike other users though if anything I find it to be a little UNDER sized, maybe they aren’t using enough cotton lol. I find it’s perfect for my 2.5mm coils and I haven’t used it on any threes yet.
Pam Morris (verified owner) –
Really like this product. Although I find for a 3mm inner diameter coil I need to trim a bit of product off so that it moves easily through coil. Picky I know. My second purchase of this product. A great deal when on sale.
PÃ mela (verified owner) –
Good product, More like 4 or 5mm not 3mm.
Dalton (verified owner) –
I can’t tell the difference between this stuff and any other “premium” cotton. One small gripe I have is they are shorter than most other brands. I can normally get two coils done with a single piece but it’s not really possible with these. Other than that I’d definitely recommend it. Great price fast shipping and a good product.
Ohmbound1 (verified owner) –
I really enjoyed this cotton I have used almost every commercially available cotton from Cloud 9 to KGB they are both very good cotton but the flexfiber n my opinion is the clear winner here flavor comes through extremely clean with no cotton taste that I can pick up on I spend good money on liquid and I feel as though I’m picking up on all the notes within the liquid definitely my new favorite and we’ll be ordering multiple boxes and I’ve been telling all my friends thank you very much WIREOPTIM.
Burn Rice (verified owner) –
A very easy to use lace that has almost zero break in time. I have tried over 20 lace style cottons and this is my favorite.
Andrew M (verified owner) –
Perfect. Absolutely perfect. It’s ideal for any coil with an ID of 2mm to 4mm and will fit even smaller if you just narrow it down a little! This wicking cotton is flavorless, sucks up juice unbelievably well, and is just as amazing at releasing said juice when using it. I keep coming back to it and have bags and bags of other “ultra high grade” cotton just sitting around. It’s a huge winner!
John (verified owner) –
Cotton is extremely fluffy and wicks very well. Highly recommended if you use a 3 mm build.
Frank (verified owner) –
Easy to use on 3 mm coil.