LEZYNEBicycle Caddy Sack Bag, Welded Seams and Roll-Top Closure, Weather Protection, Quick & Easy Access, Bike Bag

Use it to hold extra tube and gels on long rides (have a spare in my seat bag as well). Keeps everything dry.

I Use it as my my cycling wallet to keep my stuff dry. Can fit keys, cards, money and headphones case.

Ultimately I returned this item, but I want to be fair: it's well made and very solid. The closure was solid. But that's part of the problem. It's bulkier than I anticipated, and the reviews/answers that say this can be comfortably kept in a back jersey pocket perhaps have much larger pockets than I do. It stuck out of the top, and the corners are fairly pointed (not sharp, but uncomfortable against my back). I anticipated that I could roll the top down to a smaller size, but it's not a roll top closure in that sense. Maybe strapped under a seat this would be perfect, but it just didn't meet my needs.

Overall a nice product, unfortunately mine came damaged, but no fault of the product.In terms of the product itself, i think it's a bit expensive for what it is - pretty much some nylon/plastic with a velcro top. The capacity of the small is pretty tiny and if you want to get a tube and 2 co2 plus inflator head & mluti in there, you'd be hard pressed, but i'll likely fit - not sure how comfortable it'll be though as it'll be pretty lumpy. While understandably this item is supposed to prevent saddle bag usage, I found that Lezyne road caddy (tiny saddle "bag") is probably a better option for tubes, co2, multi, etc. which also frees my pockets for more gels/food on long rides (for a saddle bag, imo doesn't ruin the lines of the bike any more than having a lumpy back ruins the jersey flow). That said, this product is fine, I give it 4 stars since I had previously accomplished the same thing with a plastic ziploc bag which, for those weight weenies out there... is lighter and just as waterproof.

excellent organizational sack for those of you that like carrying your repair kit in your jersey (or messenger bag, etc). i've owned both versions and they work excellently at organizing as well as keeping water out. in both, i've ridden through absolute downpours for hours and never had any water come in. i've even stuffed my phone in on those occasions, when i felt the weather i was in was too much for its case. everything stayed nice and dry throughout the ride. and obviously, in day-to-day rides where sweat is the only moisture issue, i've had no problems whatsoever. this thing just laughs at the sweat and asks for more.while the design/concept of this product is great, i do have some gripes:- with the original version, if there was excess material and you needed to fold it to have it sit better/flatter in your jersey, this excess material would bulge out awkwardly. so i was excited to see the new (current) version when it came out; i bought one immediately. it folds MUCH better and the excess material stays much flatter against my back. so i prefer the current version.- HOWEVER, i have to say that i immediately had to return the first one i received (of the current version). while it folded great and looked great, there was a HUGE hole in one of the corner seams;i could fit a thumb through it. this would never keep water (or even sweat) remotely far from the inside. so i returned it and got another one. this one's been fine so far with all of the seams.- BUT now the velcro is starting to separate from the bag (after only maybe a couple dozen opens/closes). i may be able to re-glue it, we'll see.so...they've improved on the design/execution of their original idea, certainly. and these quality control issues aren't terribly upsetting, given how cheap this thing is. but really, considering how awesome and mostly-perfect lezyne products are (some are downright beautiful), i feel they've missed this one a bit. it's a wonderful concept and they've certainly improved the design from version one to version two; they just need to perfect the quality control aspect of it now.

I love this little bag! Getting ready for an outdoor ride used to be a process...what do I bring? Where will I put it? What did I forget this time? The Lezyne bag has cleared that up for me.I keep some CO2 cartridges, sealant, small bike tool, and emergency cash in the bag. There's room for more, but this fits very comfortably in one of my jersey pockets. My tiny saddle bag has an adapter, more flat fix tools, and another cartridge. I don't like the big saddle bags, and this has been a good solution for me. The bag has held up well for 2 seasons with no signs of failing.

This fits well in a standard central bike jersey rear pocket holding a spare road tube, multi-tool, chain-breaker, pocket knife, and patches. The material seems durable and well-made. The only problem is that it's pretty rigid material, and the seams are cut to make it as waterproof as possible. That makes the corners really stick out, and they're so stiff that they could puncture right through a bike jersey with thin fabric.I might have been able to get away with the small size, actually. The medium holds more than I expected.

I picked up one of each size at my LBS after searching here first and not finding a good description or images. I felt compelled to fill the void for all you Velominati obsessed with rule 31 (remember rules are made to be broken). So here you go Amazonians!Photos show my small and medium caddy next to my regular size iPhone 6 sitting on a ziplock 'snack' bag I use for the phone. The second photo shows the kit I carry, which all fits in there very nicely and without unnecessary wrestling. When packed, the small caddy fits very comfortably in a jersey pocket with room to spare. The medium size is essentially exactly the same size as a jersey pocket and would also work quite well if you had more stuff to carry.As an added note and bonus review, I also have a Lezyne Road Caddy for under seat carry on other bikes, and it holds EXACTLY the same equipment you see in my small caddy sack. Everything fits perfectly and snug as well. Another 5 star for those too.Net net, extremely happy with these three caddys and any Lezyne product I've purchased.

Superb. Fits my iPhone 6s Plus & case nice & snug. Not too easy to get in or out but then again I didn’t think it would work with my phone. Pleasantly surprised. A friend left theirs out in the rain & their phone was bone dry once they’d realised & gone back for it!! Definitely recommend!

The medium one is a good size for a jersey pocket. Lots of room for a couple of road tubes, inflator, patches etc. I could squeeze an iPhone 5 in there too if I wanted.

Works well, nice size. But wrecks your jersey if you fill it with tools. Not so sure about rule #31.

Good design, does the job perfectly.

Brilliant item for a cyclist