EDZ's merino base layer is a good example of 'plain and simple', and at a reasonably good price. This 200gsm merino base layer long sleeved crew is made from 100% superfine merino wool and feels luxuriously smooth and soft next to the skin and very comfortable to wear.
Featuring flat seams for added comfort, the base layer has anti-odour properties and a dropped back for additional warmth when sitting on cold chairlifts and the like.
There's a good choice of colours so you can be as dull or bright as you want, and it's the kind of thing you can wear in the pub without it screaming out that it's technical ski wear, making it that bit more versatile - indeed, you could wear this pretty much year round and not just as a ski/winter garment.