If you don’t have one of these then quite simply get one!! They make your lighter weight jackets and coats work harder and for longer. Perfect for travel too. Clever details to make it invisible and super warm. I’ve had mine for years Wearing xs but going to buy XXS so it’s a neater fit under my shorter jacket. Does also come in a sleeveless version too if you’d prefer. Also linked Autumn layers Transitional Jackets LTKautumn LTKuk LTKstyletip