It's just a thin wooly jumper that stays wet for ages, wicks poorly and costs a stupid amount of money.
Amen to that.
Merino is good as casual t shirt as you don't stink at the end of the day and it's warmer than coton.
I have tried merino several time on my bike.
First during summer/mid season commute. Poo I got in the train all wet and the stuff wouldn't dry during the journey.
I said ok it's me, maybe I am pedalling too fast sweating too much.
Second, I have tried it in a chilly october ride from Fontan up to le lac des mesches and down to bergue up to the fire road and back again. Same, at the end of the first climb (not even 2 hours) I had to remove it as it was all soaked up with sweat.
Thrid during a winter ride up to le mont chauve and same again got absolutely soaking wet to the top, it wouldn't dry and I got a cold.
So that's a no no for me… On a very funny note, the mountain shop next street sells merino. 4 of the salesman are very good moutain bikers (by very good I mean top 20 at la trans vésubienne and the record of la spécial du mont chauve). They have plenty of merino stuff and petrol based stuff. And guess what, they don't use the merino to ride bike.
As above i don't tend to smell when I am sweating during sports. So lets face it, my icebreaker merino top is now my favourite pyjama top…