When Lululemon comes out with a new running vest, it's time to start saving up. For everyday jogs, training, and racing this Down For It Vest (£148) will be your new workout partner in the winter. Developed with the cold outdoor runner in mind, the vest features Lululemon's special water-resistant Glyde fabric to keep you warm and dry whatever the weather throws at you. The stretchy fleece fabric keeps you feeling snug and because it's water-repellent, you won't get hot and sticky when you hit your run pace.