I handwash all my merino stuff in the sink and air dry with generic brand Woolite. I have accidentally machine-washed my BPL UL Merino Hoody a couple times without immediately obvious ill-affects. I air-dried it after both times. My understanding is that the violence of the wash cycle isn't great for the delicate fibers, same reason when you hand-wash you don't twist/wring it out, but squeeze and dry it with a towel before hanging. Tedious, but since it's merino I only wash every 5-6 days use, and for the price, a precaution I'm willing to take.
I do machine-wash all my merino socks, in a mesh bag of the type that women use for their delicates, so my expensive footwear doesn't do a disappearing act. I've never had damage issues, but the socks are made of heavier fabric.
The R1, I machime wash and dry on low, but I don't wear it that often as it's only a deep-winter piece for me, and doesn't smell until after several uses.