Good pouch with one big oversight
589099
Its a pretty good product, but I am very surprised to find that the pocket for the extension bit is open on the bottom and the bit slides right out. This is a huge oversight, but the rest functions well and feels solid.
3768043
The bag is large, but not too large.  The zippers are waterproof, but not too difficult to open.  Everything about this bag is great, except for one small thing.
There is a pull on top which is meant to secure a flap over the inside zipper for increased water protection.  This flap doesn't work very well, and the pull gets in the way of unzipping the bag to get at gear.

Other than this small design inconvenience, the bag is fantastic as a single place to carry all your gear.  What I have: 2 camera bodies with battery grips, 2 flashes, 3 lenses (70-200 2.8, 24-70 2.8, and 10-20 4.5), large carbon tripod with ballhead, graduated density filters.
142730
I use a larger case than the one included with the item and it still fits within the pouch. I use the carabiner attached to my belt instead of the belt loop.
3173651
Nice leather and size, but there is an extra pouch inside that makes the wallet really thick.  Should really just be two flaps so it will close all the way.  Otherwise, very nice
3899473
I love the soft cover of this binder, and the fact that you can zip it shut. It's like a binder and storage pouch all in one.  It has two zippered pockets, one inside and one on the front, plus a deep pocket inside and a small pocket with a velcro closure.

The three-ring metal binder piece inside is strong and of good quality. You can remove that piece with your papers still in it if you want to use the cloth part as more of a pouch than a binder. I love that versatility.

There are some weak points I should mention. Number one is that the softness of the pouch means your papers inside are more likely to get bent if you're not careful, compared with a hard-sided binder. The other weakness is that the three-ring piece attaches inside with velcro. In the binder I received, I cannot get the velcro to attach firmly for about 2" at the bottom, so there's the possibility that the piece could come off unexpectedly and your papers could go flying.

Editing to add: Very shortly after writing this review, I discovered how difficult it is to get the zipper started to close the binder when the 3-ring metal piece has been removed. It's really irritating, and for me quite a drawback, for which I've had to remove one star from my rating.
1307136
This pouch holds three double stack pistol mags very well!  My only complaint is the Molle straps that attach it to a vest could have been made less sloppy!  When attached to a vest, it hangs away and wiggles around!
1170328
The pouch is a "universal size" so that it could probably accommodate a knife with every possible blade or tool and so it was slightly oversized for my middle of the road Swiss Army Knife.  The belt loop was large enough to accommodate even large belts. I found the closure snap was too easily opened if the pouch rubbed against something like a seat belt.  It was otherwise well made.
4749870
This is an excellent hydration pack for cycling.  It carries enough water for a long ride, plus a good volume of storage pockets for food bars, wet weather gear and some medical gear, without becoming a full sized back pack.  This is much nicer than a similar product that I was using from Camelbak.  I was disappointed, however, to discover that the exterior pocket is NOT detachable, as is stated in the product description.  Also my pack arrived brand new, but the entire waist belt is MISSING, leaving the wait belt pockets flapping at my sides.  These two items are not the fault of Source, but it is not worth my time and effort to send this back to Amazon for an exchange, so I will simply make my own waist strap with some one inch webbing and a side release buckle.
2504805
This is a fairly good quality pouch. My only complaint is that the secondary pocket in the back pocket was a thin nylon that tore loose when I placed a magazine in it. I bought this for concealed carry and it holds my Kel-Tec P-11 nicely an allows for carry of up to two spare magazines, and my flip phone
3569259
Excepting one unfortunately major issue, this is a very nice pack.

There's a pass-through pocket in the front with a bit of velcro, intended for CCWs and the like; currently I have a couple spare magazines in there loose.  It's a decent size, but not great for items thicker than maybe an inch or so.

Behind that is a larger zip-down pocket with velcro/molle; I carry a couple organizer pouches in there (one's a boo-boo kit with bandaids, contact solution and case, some alleve, etc; the other has some USB cords and a wall charger, USB key, and similar items) and a pack of baby wipes (useful for cleaning hands, sanitizing public restrooms, or similar...or just cleaning).  It's fairly voluminous; during the winter I added a mid-weight baclava, glove liners, and gloves into it with no problem.

Further back is a larger pass-through pocket, which I use for my tablet and BT keyboard.  Occasionally I'll also stash a folded raincoat, pair of gloves or similar items that I want easily available.  Much like the first pocket, it works best for fairly shallow items.

Above the larger pass-through is an organizer pocket; I have a mid-size notepad, pen and pencil, some miscellanous keys, and a wallet with various cards in there.

The main pocket has 3 pouches: a velcro laptop pouch on the back, and 2 zippered mesh pouches on the front.  It zips apart fully, and has compression straps about 2/3 the way up.  When travelling over the winter I had a legal-size organizer portfolio in the laptop pouch, my work laptop, a thick pullover coat, an abbreviated toiletry kit, a couple paperbacks, and some other miscellanea as a carryon; especially with the compression straps it was a pretty easy carry through the airports.  I haven't found the mesh pouches terribly useful, but they don't really impede the main pocket's use.

Last, there's a very flat pouch with a padded framesheet; I'm not sure it's really intended to be used, but you could put some flat items (maybe an ultrabook-type laptop) in there.

There's two bottle pouches on the sides, easily large enough to carry a 1L Nalgene bottle.  They are mesh, which some don't like as it catches on branches and such, but IMO this isn't a pack for that type of environment.  They have elastic cords at the top so they can be cinched down.

The back pads are nice, airflow is decent and the lumbar pads are high-friction which arrests most movement.  The shoulder straps are well-padded; when adding the sternum strap they hold the weight very well.  The sternum strap is adjustable in about 1.25-1.5" increments; I usually just remove it and attach it around one of the shoulder straps for daily use.

The big failing is the never-sufficiently-damned handle.  If you tighten the shoulder straps, the thing digs into the back of your neck.  If you loosen the straps so it doesn't, the pack falls down-and-out from your spine and throws the balance all off.  It's pretty much terrible.  My best guess is they based the design on something with load lifter straps, then omitted the lifters.  It's also sewed as a part of the shoulder straps, not sewed onto them, so I can't really just cut it off.

The pack is overall good enough I can't recommend against it, but at the same time I can't really recommend it for use.  If I hadn't been hoping it would break in or I'd figure out a way to carry it, I'd return it and try to find something similar without the handle.
575284
This backpack is of excellent quality. However I have 2 qualms with it. The first is that the top pouch is just a simple pouch and I needs a small divider or pocket inside to make it viable for me. The second is that the notebook sleeve inside is too short. I thought it would be able to hold a full sized notebook, but it can not.

Otherwise it is large inside so it will be useful for easy traveling.
3696121
Love everything bout this bag except:
The pouch in the strap. Since its non-moveable in my body it ends up higher than I like. Second the net on the side of the bag is excellent but I wish the elastic were slightly snug-er so things didn't fall out of the pocket. Good size if you always have a water bottle in it, too big for credit cards, cap stock, keys
4818697
I purchased this case to because I wanted something that wasn't too bulky to put in my backpack when traveling. It fits my Canon G16 with a wrist strap perfectly but without the neck strap. This case has enough padding to protect the camera while in my bag. However, Im not sure how well it would do if I dropped it on the ground, but sacrificing less bulk/padding for traveling is obviously my choice and it fit my requirements perfectly. Now for the one flaw that for me is significant. Inside the front of the case there is a small pocket for memory cards. When I use the camera both memory cards I have in the pocket easily fall out onto the ground, so buyers of this case need to be aware that they will need to close the case as soon as they remove their camera to avoid losing any items or constantly check to ensure they haven't fallen out. The pocket needs either a flap or a small piece of Velcro to ensure the items stored in the pocket actually stay in the pocket.  My rating for this case is 3.5 stars for the pocket issue. If it was fixed I would give it 5 stars.
1935970
I use this bag on my #1 bicycle. This a bike I've ridden over 10,000 miles in the past two years. This pack is well constructed and has held up well. Except for some dirt from road spray, the bag looks unused.  I really stuff this bag: two spare tubes, folding took kit, CO2 cartridges, tire levers, and there is still room for more. My only complaint with the pack is the net pocket on the inside of the back flap. This feature is a great idea, but the concept was not well thought out by Topeak. When you open the bag, the end folds back and anything you have placed inside the pocket easily falls out. I've lost several items when I've had to change a flat and didn't notice that everything was not back in its place. Topeak should have made it a zipped pocket. I'd give it 5 stars if they changed just one item.
3648272
But some of the hex keys fit a little too snugly. Unfortunately the phillips screwdriver does not fit on any of the screws on my mountain bike.
The pouch is nice, but I think it would've been nice if it had a belt loop for those without at least an under the seat wedge pouch.
104072
If you want a well made, nice looking wallet case for your iPhone, this qualifies. Soft leather, well stitched with pockets for cash/2-3 cards. The latch holds well and the case loses it stiffness within weeks. There is one major flaw, though. The opening & depth of the back camera window prevents any decent flash photography. There is a flashback that destroys your photo op!  This may be a problem with all these types of cases, but a wider opening may prevent that from occurring. See attached sample. I discovered this flaw after using it for several weeks & thinking it was my technique or the camera. Unfortunately, the case is now history as it is very impractical to remove your camera every time you want to do flash photography.
1512554
Good pouch, but low quality draw string frays from use with the cinch mechanism very quickly