Warm, but breathable.
The L is spot on for my size 10/10.5 feet and super comfortable. Exactly what you would expect from a well made merino product; temp regulating and cushion providing goodness (no added cushion, just the natural properties). I bought these to compliment my new red Ornot bibs...you can't help but feel fast with that duo.
Great length and fit for merino, plus a classic color without the neon. What's not to like?
I wear Ornot socks everyday