DP is a sports coach and as we’re in tier 4 can only work outside which is usually 10-12 hours a day.
He already wears base layers and then a gilet under his North Face coat but is there anything else anyone recommends?
Since the temperature has dropped recently he’s been coming home absolutely freezing. Mainly his feet and face/ears and he can’t really coach in a balaclava 
I was also thinking he could get a thermos and start taking something hot for lunch as he can’t go inside at all so just sits in his car to warm up a bit in between lessons.