This is the Arcteryx Atom Hoody, a classic. Please refer to the fourth image for sizing. My husband, who is 172cm tall and of average build, usually wears a size M, and this fit him perfectly. • Features Coreloft™ Compact 60 synthetic insulation, which is lightweight, warm, and retains its insulating properties even when wet. • The outer fabric is Tyono™ 20 material (made in Japan), which balances wind resistance and breathability, and is also durable. • Stretch fleece material is used on the side panels, ensuring ease of movement and ventilation. • The hood is insulated and adjustable with a drawcord. • This is a versatile model that can be worn as a mid-layer or outer layer in a wide range of situations, from everyday use to hiking and climbing. Model number: 14644