In reply to girlymonkey:
I've chucked away some merino things recently that were just more holely than woolly! I was a massive fan of merino everything a few years ago, but have come more centrist on it now, mainly because as a material it is just so much more delicate than synthetics. I just discovered my favourite outdoorsy boxers, some Rab MeCo ones have a developed a hole from wear, and they are part synthetic - so even the mix materials seem more delicate, although last better than pure merino.
Anyway, Aldi have kids and adult merino tops and long johns either just in, or about to come in, as part of their ski range. I've had one pair of their merino long johns that came apart a seam, but they replaced them without an issue, and a second pair that are wearing well. I've also got some Lidl ones that are wearing well too. Having paid under 20 quid for them (one pair might have even been reduced to 10!) I don't think I'd buy smart wool or similar again as I was upset when they wore through!