Eddy long sleeved baselayer
Merino is the way to go when you're choosing a base layer, probably the most important part of your layering system.
You know about Merino wool right? Warm in winter, cool in summer. Supremely breathable with natural antibacterial properties that come in handy when it's not been off your back the entire weekend.
Finisterre are passionate about natural fibres, and there's nothing more natural than wool, a thread they magically weave into something of an artform. They source from fully traceable New Zealand farms, which are mulesed free. If that means nothing to you, safe to say the Finisterre folk have gone the extra mile in terms of animal welfare, and we don't recommend googling for pictures.
Their wonderful wool is compact spun for durability and softness, before being mixed with 20% polyamide for strength and shape retention and given a sharp razor finish.
These long sleeves and elongated body leave few gaps for the cold to seep in, keeping you extra toasty.