Firstly, a very speedy despatch/delivery, just what's needed when it's snowing out there...
I bought these to replace/supplement my aging Patagonia Capilene liners, used primarily for cycle commuting.
Out of the packet they are true to size, and not as delicate as I was expecting (I have little experience of silk - possessing just a sleeping bag liner to protect my down bag, which is comparable to Pertex but warmer to the touch). They appear to be left and right specific - you hands will tell you which is which. Under windproof fleece or Goretex gloves they 'glide' well and do not in any way inhibit movement, gear changes or 'feel' of shifters/levers. After a good soaking they dry at room temperature ready for the ride home.
I would have given 5* stars had the stitching around the base of the thumb not started to fail after a week of daily use - repairable as it's not the fabric that's failing but long term durability remains an open question....
All things considered a quality buy at a good price, suitable for a range of cold weather activities but probably also useful in milder conditions for photography etc. due to the lack of restriction and 'feel' of buttons/controls.