Saw these in a Cotswold catalogue.Any feedback from users,please?

Do you mean these:
www.cotswoldoutdoor.com/Cat/109632?

I'm guessing you do. What I'd say about Sealskinz is that they seem to work well for some people and not for others. My end conclusion is that it depends on how sweaty your feet get though the merino-lined versions are definitely more comfortable than earlier ones I've tried.

Bear in mind too that while some people will tell you that merino wicks, in reality it doesn't though it has a high capacity for moisture absorption and, as I understand it, will pass water in vapour form.

I'm guessing that's not much help. My feet seem to generate too much fluid for the breathability of the sock to cope with, but equally some users really like them.

Oops!Sorry!Didn't spot that they were Sealskinz-they were tacked on at the end of Smartwool socks.Thought they were a new product.Thanks,John.

No worries, I've changed the title of the thread btw :-)

I thought people just used these for sitting around the camp at night when they didn't have any dry shoes. Or am I confusing them with freezer bags? ;o]

I was a bit dubious about them but two people recommended them so I gave them a go and I have to admit they've been excellent.

We wear them for cycling when it's not dry and sunny (that's most of the year then) to prevent wet socks and the accompanied discomfort and chafing.

I wouldn't want to wear them for walking (where there is more pressure on the feet) due to:

1. they're an amorphous tube shape so you'd get some bunching under the feet or at the toe regions leading to possible hot spots / pressure / blisters.
2. the membrane is as bad as the membrane-lined boots for inducing sweating leading to (see above).

In the right place they are fantastic.

Great on the bike. If's super cold you can stick a thin liner on underneath.
The feel is odd at first, but you soon get used to it. The joy of dry feet on wet trails is a revelation, just don't get overconfident, I've filled mine with water over the cuff!
As WW says walking might cause problems due to the lack of a proper fit. My pal did a small hill in his recently and blistered.

I wear thin socks under mine when walking (I usually wear two pairs of socks anyway) and I haven't got any blisters.

I've only worn mine on two occassions, but they fitted fine, and no blisters after reasonably long days in the hills. I certainly didn't get any bunching problems, or any pain related to them. Maybe I just have the right sized feet, I don't know.

It was hard to tell how quickly they were getting rid of sweat, but they didn't seem any worse than any normal mid-weight socks.

I wore mine with Keen Taos Hybrid shoes a lot in the summer and they worked well. Weird feeling going through water; I could feel the chill and water movement but no wet feet!

I use these & the mid thermal merino versions regularly for mtn biking. In the cooler months, I wear a thin liner with the mid weight versions. I find them great, very waterproof.

I also wear them walking when it's raining or when I'm expecting it be boggy. I have on problems with comfort, but then again I usually wear trail shoes rather than boots.

I have used sealskinz for the past 6yrs at least.They are great.
I buy a new pair every year because after 40to 50 days use i cannot be sure if they will keep my feet dry.I am crippled with post operational rheumatism and but for sealskinz i would not still be bacpacking.
Lst year i used them in the Alps for a week in +30c they still worked.
Took them off yesterday after skitouring for 10km on Lochnagar the boots were sweaty,the outer sealskinz were sweaty but my Outlast Rohner socks were dry.
the only problem is i find that you become so confident in them you wade thru streams and the depth of water over tops the sock,stoopid me!!

Mine fit very well and have never given problems; I have skinny, low volume feet and perhaps that's a pointer if you are undecided. My feet are naturally pretty sweaty,too, but I find the breathability good - only a little bit clammier than normal and that's a price worth paying for dry feet.

Do not wear them to pad around the house or the bothy, and especially not in front of a wood fire...one teeny splinter will render them useless.