Warm, compact, durable: this is the Nuclei AR Jacket by Arcteryx!
This lightweight jacket with synthetic insulation is equipped with a wear resistant Gore Thermium fabric with taped seams. It is highly weather resistant (not durably waterproof) and compatible with a backpack. The flat construction (elastic cuffs, edged pockets, adjustable hood) makes the jacket suitable for wearing under a hardshell. It can also be used as a Belay jacket to slip on over a climbing softshell during breaks.
The hood is helmet-compatible and has slightly thinner insulation than the torso. Stored in the attached stuff sack, the jacket takes up little space and has loops so that it can be joined to a carabiner or climbing harness. The siliconised filling fibres provide good thermal retention even in wet conditions and always return to their original shape.
This jacket is characteristic of products by the Canadian manufacturer and features a subtly sporty design, which is just as suitable for everyday wear as it is for trekking, hiking and mountaineering. All year round, as a middle or outer layer!