I've had lots of Pantherella merino socks that I liked.  These are good socks, but they're the wrong size.  The sizes shown on Amazon are apparently UK sizing, so everything I received is a few sizes off, without indication that the sizing is not US sizing.  For example, I ordered a men's "7.5-9.5."  The size I received was a size 8.5-11, and they're noticeable bigger than they should be.  Worse, they were shipped from the UK, so it's a waste to ship them back.