Winter gloves

I was considering silk but a lot of people are saying good things about merino wool - would these be a better bet due to breathability? Any particular recommendations?

I had ridden with silk liner in the past, the merino lining is a noticeable improvement that when I'm off the bike, it's enough to keep my hand toasty, also it cost a little under a tenner which is great.

SealSkinz Thermal Liner Gloves with merino wool: Amazon.co.uk: Sports & Outdoors