Best base layers for men: From thermal long johns to long sleeved tops to keep you warm

Now we're in the depths of winter - when the summer sun has become a distant memory and biting sub-zero temperatures are the hellish reality - the time has come to start thinking about thermals.

With base layers at your disposal, you can easily weatherproof your outfits without bulking out your silhouette - meaning even your summer pieces can work double-duty. There's no need to hide your oxford shirt beneath a chunky knit or conceal your