Lightweight, packable and water-resistant insulation. Long-distance riders often encounter a wide range of conditions, so a lightweight layer that is both warm and packable is essential. The Insulated Brevet Gilet provides exceptional warmth, while highly breathable Polartec Alpha insulation ensures you won't overheat during harder efforts. The gilet features reflective detailing for visibility, and a water-shedding DWR (durable water repellent) coating for added protection in rain showers. Thanks to the hydrophobic properties of the Polartec Alpha insulation, the gilet wont saturate in the same way that natural down insulation will, and is quick drying. Mesh side panels stretch to fit over full pockets and a zip placket keeps out the wind, and when not in use, the gilet rolls into an elasticated loop at the neck to stay tightly stored. Please note that the two-way zip included on this product at launch has been replaced by a standard zip. Karen Whittier, product manager for insulation at Polartec, explains the science behind Polartec Alpha: Polartec Alpha was engineered as an active insulation to regulate core body temperatures during both dynamic and static activities. This ‘adaptive’ breathability helps eliminate the need for shedding or adding layers while on the move, making it ideal for cycling. By keeping moisture vapour moving freely through the fabric, it increases overall air exchange and drastically speeds up dry times, providing thermal regulated comfort. Polartec Alpha is also highly compressible, made with a stable core that prevents fibre migration to keep a uniform consistency, even after heavy wear and repeated laundering. The Rapha Brevet Insulated Gilet performs exceptionally well in typical British spring/autumn weather. With a weight and packability that belies its warmth and weather protection, the Brevet should be top of your list.