photo: Rab Women's Nimbus Jacket synthetic insulated jacket

Rab's Nimbus Jacket synthetic jacket features a unique insulation that claims to come "as close as possible" to the insulating properties and warmth-to-weight ratio of down, while maintaining the favorable moisture management properties of a synthetic.

The Cirrus powered by 3M Featherless insulation is blown into the garment, like down. The whole thing is sheathed in a Pertex Quantum 20D shell for superior warmth, wind and water resistance.

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