Planks Huff 'n Puffa Jacket. Size M fits (UK 8-10). Planks’ Huff ‘n Puffa combines the style and hug-feel-warmth of a puffa jacket with the tech features of a ski jacket. Its 150g insulation, 10k /10k recycled fabric and slightly cinched-in waist mean you don't have to compromise style whilst out in those freezing conditions. The detachable powder skirt and multitude of pockets make it ideal for everyday life.