I have had some problems finding a good-fitting pair of waterproof boots. The few boots I've found that do fit me well haven't been fully waterproof.

I watched the video review here and then picked up these liners at the very last minute before a cross country tour in November/December of last year. They were exactly what I needed.

I had some misgivings about how breathable or how comfortable they would be for the long days, but once they were on, I basically forgot all about them. The second day out I rode for a full 500 or so miles in some pretty fierce rain. My feet were plenty dry and warm. The socks wicked moisture very nicely so I was never cold or uncomfortable at all. The liners do seem just a bit small on the sizing at first but it's a very tailored type fit (left and right specific) and I was used to it in no time.

For the money, these were one of the best investments in touring gear I've made in a long time. They work, they're easy to pack and easy to wash/dry while on the road. Pick up a pair and you won't be sorry at the end of those long wet rides.

I normally wear 8 to 8-1/2 US shoe size. Ordered the 9 GTX Liners, and these are small, almost too difficult to slip-on. Definitely order a size up.

Apparently there aren't a lot of good options out there for a nice durable, well-made goretex sock.

This one incorporates a goretex bootie and a thin wicking sock is included.

100 bucks to convert your boots into waterproof ones seems like a reasonable deal.

Tight-fitting boots will likely be unable to accomodate the added bulk.

I used this product on a trip through Patagonia in cold and wet conditions. Given that I have yet to find a boot that really is truly waterproof, these liners were superb. I could actually feel the water rushing in to my supposedly waterproof motocross boots when traversing streams or even splashing through large puddles and then draining out - my feet stayed warm and dry which in freezing weather is a must if you want to keep riding and ride we did. I always keep them with me on any ride. compact and easy to throw on if you suspect a little wet weather.

I ride in the Pacific Northwet, and these puppies pay for themselves on your first soggy ride. No more plastic bags on the feet. These liners breathe very well and you forget you're even wearing them. They pack small for ADV rides too. I was going to buy a pair of waterproof moto X boots, but these were the affordable answer. Nice work Klim!

Whether you buy this instead of a waterproof boot, or just as back-up to your "waterproof" boots, or use this in sketchy muddy conditions for a bit of extra dryness and warmth, these strike me as a great idea.

They are thin, so bulk/sizing is no issue due to that, but these do run almost a full size small, for me.

It starts to leak after you use it around x10 or so, due to material fatigue as it rubs on the boot liner.
I have a very nice SIDI Gortex boot, so , it was not the boot problem, but the liner.
Hence Klim is discontinuing this sock!
I hope they will make another one, but more durable!

Super dry! Best socks ever for the outdoors. very thick and durable.

I haven't used these socks in the wet yet but I fully expect them to perform as advertised. I wear a size 11 most of the time and because of the unavailability of sizes 11 and 12 I decided to try a 13 because someone mentioned the fact they were tight. The 13 appear to fit perfect. Not to tight and not at all sloppy on my feet. They fit well in my boots and are very comfortable. As to whether they will hold up and remain water proof through multiple hard rides in my boots we shall see but so far I am pleased and expect good things.

I had a long distance ride during a torrential rain day while wearing a pair of Gaerne SG10 off-road riding boots; needless to say my feet were cold and looked like a pair of prunes at the end of the day.
I purchased these to use for rainy days, and to help keep my feet dry while foraging water in any off-road riding.

The package comes with a nice pair of knee high stretch socks and a tall pair of Gore-tex over-socks . The build quality looks great, and they are knee high which I expect to help block any water from entering through the top side.

Considering the benefits of Gore-tex, I expect them to block water from my feet.