Arc'teryx Hyllus Hercules Jacket Women's L Large Teal Fleece Lined Polartec Gently used Non smoking household Measurements in photos It's incredibly cozy, it blocks wind better other models, the Polartec Power Shield High Loft 02 fleece on the inside of the Hyllus is second to none in softness. why are you still reading this and not buying your own? Formerly known as the Hercules. Turning up the heat another notch, the Hyllus jacket has a hi-loft interior that creates a warm zone and the air-permeable outer face provides maximum breathability during active use. This fleece jacket makes layering simple and delivers a pill-free finish that stays looking new. Highly breathable maintains comfort during aerobic activity • Insulated • Polartec® Power Shield® 02 High Loft Stylish Arc'teryx jacket. Features multiple zip pockets. Perfect for outdoor activities.