Effective traction and lightweight for packing
341248
These come in a very durable thick carry sack and are very light weight for packing but strap securely and are seem to be made of very robust materials.  Great for walking on consolidated snow and ice.  I'm very happy with them.
1328680
Took these with me when I backpacked through Central America.

Cons:
- Lightweight but the packing cubes feels flimsy.
- A little too pricey for the quality.

Pros:
- Makes organizing a lot easier.
- You can fit a lot of clothes with these (especially if you know the Army Packing Hack). Google it.
- Perfect for small carry-on backpacks (I used a 46 liter backpack).

Bottom line:
- I was satisfied using these packing cubes while I was traveling. It made traveling easier by being able to organize. Although I'm not a fan of the material used, I do have to say these packing cubes get the job done.
3963751
I like the product. Very functional to store the pack it cubes. It is also lightweight
1215359
Got this to be slightly bigger than the bag I usually travel with -- to have room to bring back gifts and mementos.  And was curious about the 4-wheel style.  It works very well on all accounts.  First, it is quite light so that its weight didn't add too much toward my 50# international weight limit.  And it is sturdy, reinforced where it matters on the corners.  Having the bit of expansion was good.

The four wheels seemed to make transit easier though sometimes I found myself tipping the bag back onto the two-wheel style I am used to.

It was easy to lock the main compartment zippers with a standard travel lock.  I might have liked to lock the outer compartment, it was not so easy to get the travel lock cable through it to lock it; I ended up putting things in this area that I could have lived without.  And nothing was lost.

Also, for getting up and down stairs, there is a handle on the "bottom" opposite the handle at the top; this allows for carrying it upstairs with control and ease, rather than simply lugging it by one handle.

I was initially disappointed that there weren't zipper compartments inside the main bag.  As it turns out, I actually used a couple of little zip bags for toiletries and things like cords, batteries, etc.  And then the rest of my clothes and such went into vacuum bags, so there wasn't a need for zippered compartments.
1448692
Great, lightweight shoe for rough terrain. May be a little too knobby for hard-packed trails and you will definitely feel the nubs on asphalt/pavement. There is no rockplate, so you do get good ground-feel and flexibility. Great grip on various terrain and surfaces with certain exceptions.

I wear these for obstacle course races and they work great to get you out of mud pits (Rolling Mud, Mounds of Grounds, etc..). Throughout most courses they are ideal in most of the courses that run through new trails with loosely packed surfaces.  As with most deep cleated shoes, it may feel weird on balance obstacles like logs and such so test your footing first. They have held up well on wall traverses and enough feel to stay on the small wooden blocks.  Grip on wet plywood is great, thus slanted/inverted/regular walls are not a problem in these shoes.

Drainage is excellent and the material does not hold onto much water. Coming from Salomons, this has been a welcomed change plus this shoe is much much lighter.

FIT
I prefer shoes with a wider toebox as I have a wide toe-splay and these work great. No cramping, no blisters on my pinky toes.  The arch/body may be a little wide for some as I have a medium volume midfoot and the eyelets over the tongue are cinched pretty close to each other, so not much more room for additional tightness.

Size - 10.5 (had to size up)
I normally wear a size 10 in most shoes with size adjustments from there.  For reference: Size 10 in Nike Free Run+ 3, Nike Free 5.0 (2014), Nike Free Run 2, New Balance M730 (NL1 Last), New Balance Vazzee Pace, Salomon Fellraiser etc.  I am a size 10.5 in Nike Free 4.0 Flyknit, Nike Free 4.0v3, Nike Free 40.v4.  I am a size 9.5 in Merrell Ascend Trail Glove. For boots, I'm generally a size 9.  And size 43 in Euro sizing.  Annoyingly, for Inov-8s it appears I am generally a 10.5, except for certain models. For example, I am a 10 in the Trailroc 245.

Feel free to ask questions in comments and I will gladly answer questions about shoe performance and fit.
4750940
Good quality shoe; lightweight and has good traction. I wish it had more color choices, but the reflective pieces are a nice touch for safety in the dark.
1286361
Well made of quality lightweight materials.  Very thoughtful design with attention paid to the details that make backpacking and carrying a heavy load easier and convenient.

Materials are lightweight, but sturdy.  Zippers run very smoothly, and zipper tabs are large enough to grasp.  Materials used for the straps are heavier duty than the rest of the pack.  Material and stitching are reinforced in many areas.  Stitches are small and stitching is straight as can be and finished off at all end points.  Buckles and clasps are good quality and no larger than they need to be.  (Some bags have over-sized buckles that don't add value but dig into the skin and cause discomfort with a heavy load.  That is not the case with this backpack.)

The carrier's back is protected by two pads running the length of the pack.  Each pad is triple the thickness of the pads on the straps, and they are stitched into place so that they will always stay put and not slide down.  There is also a firm but pliable, thin board within the inside and outside back layers of material to keep the packs contents from jabbing into the back.  The board is contoured to the shape of the back.  It moves with you, but the board will not crease or slide down in the pack.

All straps are long enough to allow the pack to be filled to the max.  There are plenty of strap loops.  There are plenty of dividing pockets inside, too.  There is even a rain cover for the pack in an out-of-the-way zippered pouch at the bottom of the pack

Shoulder pads are not the thickest that I've ever seen, but they are more than adequate, comfortable for bearing weight, and spaced and angled in such a way that it even fits a man that wears tall/big sizes (6'5", 240 lbs.).

*I received a sample product from OutdoorMaster for review.
3023934
Really helps to stabilize the canister.  Lightweight and folds-up, making it easy to pack.
737587
I wanted a lightweight slipper that would be easy to pack and not take up much room in my travel bag. These are just what I wanted and fit my needs fine. They are easy to put on, yet stay on. The non-slip nubs work ok, and the slippers washed up well. I machine washed on warm and dried on low, along with my usual laundry.
1857653
Lightweight and comfortable while offering a ruggedness that not only looks sharp, but also provides a mean traction on all surfaces.  Can't wait to take them beyond the asphalt road and paved tracks.
3648125
I got these for a spring backpacking trip where there was a chance that we'd encounter snow. They are fairly cheap and lightweight, so it seemed like it wouldn't hurt to bring them. So glad that I did! I'm not sure I would have made it past the snowy mountain pass without these shoe chains. They gave me enough traction and peace of mind to take on some steep and icy sections of trail, which otherwise would have caused me to panic.

These are durable, compared to Yaktrax. I could keep them on while walking over snow/rock mix, while my hiking partners had to take their Yaktrax off. Since they're much cheaper than the more serious solutions (like Kahtoola microspikes), I highly recommend taking them if you think you might need some traction help.

They are a bit difficult to put on, but nothing prohibitive. Since they can handle some dirt and rocks, you won't have to take them on and off very often.
4537831
Lightweight, Easy release and great for Outside and inside work. So far.
2054765
I got these prior to spending three weeks at a remote location in the North Cascades during a snowy February.  They provide wonderful traction on slick terrain, especially hard-packed ice and snow.  A size L fits very snugly over my Men's 13-size hiking boots.  Definitely worth the money if you see yourself using them often and want something beefier and more durable than Yaktracks.
1759364
Lightweight and excellent for winter travel.
1383094
I've done my research, trying to find a lightweight shoe that breathes well, holds up, and has traction on gravel and mud as well being good for clambering on bare rock.  A lot of my "book research" was done reading reviews in Backpacker Magazine [...]

I found these to be lightweight without being flimsy.  I also tried a pair of Scarpa Axis shoes (a close 2nd place), which were slightly lighter, but they seemed better suited to trail running, and lacked the torsional rigidity for climbing, and also lacked the protection from sharp stones on the trail.  I thought they would be more breathable, but the Montrail Flow seemed to be as good (as far as I could tell, I wasn't able to wear them side-by-side out of the house).  So, the Montrail has the support and protection that I want, and the reviews I've read about some other shoes indicate that they might have problems with durability.  The Montrails are on the inexpensive side, yet I haven't read about any durability issues.  I found the toe box to have plenty of room, and they feel very natural when walking.  The toe bumper looks like it will prevent any major damage, my informal testing indicates good protection.  Also, the leather looks like it will last longer than shoes with more fabric in that area, and doesn't have any stitching in vulnerable areas.
On a minor note: I think they look a bit goofy, but my wife thinks they look fine (she's the one I go to for "fashion advice", being somewhat challenged in that area.)  I think the outside view looks better than the view from the instep.
One other thing: the tongue gusset is not stitched to the upper of the shoe behind the laces, rather it is an elastic material stitched down to the insole of the shoe; you can feel the stretchy material when you put the shoe on at first.  You get used to it in a few seconds, don't let it put you off.  This is a great pair of shoes!  I need to put some more miles on them to see how they wear.
2473327
This tray is lightweight and sturdy. I also like how grippy the rubber feet are. I'll probably get a couple more.
1221946
I've been looking for walking shoes that aren't chunky/boxy. This fit the bill. Comfortable, lightweight, and good traction. The insoles are squishy yet supportive, and I'm hopeful that they'll last. My only complaint is that I received different colored laces on each shoe (one gray to match the shoe, and one white). Since that's an aesthetic issue and doesn't affect quality, it wasn't enough for me to detract a star. Still, it should be noted.