They are utter utter (can I continue) utter turd.
After 20 minutes of reasonably good workout riding they stink. Smelly effin Hansen (can you tell what I think of them yet - bought 2 a few months ago. Overrated rubbish)
The £5 decathlon style ones that look similar are as good.
The £10 Aldi baselayers destroy them in terms of warmth and non stinkability.
Merino would wipe the floor with them.
Your not keen then