Running

went for a quick (for me, 1 minute knocked off my last/only/best time for that loop) 5k this evening taking in Denmark Hill as it was fecking freezing!!!! had thought about doing a 10k loop but glad I didn't, got brain freeze half way round and an EPIC stitch.

I was fairly warm. If I run faster, I'd overheat.
As I'm not British, I don't like being cold (yes, continentals maybe have colder winters, but we always wrap up warm - no shorts in the winter, no t-shirts when laying drunk on the street of Newcastle in February for us).
I wear a small Pro beanie hat, baselayer and an Adidas running hoodie, thin fleece gloves (boiling hot) and lycra tights. Snood.