PATAGONIA Micro Puff Hoody £270

This, say Patagonia, is “your go-to insulation piece for mixed (and possibly miserable) cold conditions.” Hopefully the Micro Puff will make such moments a lot more pleasurable, with its PlumaFill insulation and Pertex Quantum shell fabric giving it the best warmth-to-weight ratio of any jacket in Patagonia’s range. eu.patagonia.com