Rab Mythic Alpine Jacket – Ultralight 900FP Down Jacket

🏔️ Description

Rab Mythic Alpine Jacket. A 900 FP down jacket with Pertex® Quantum 10D fabric, designed to provide lightweight insulation for alpine activities.

⭐ The Mountain Group opinion

Prioritizes thermal efficiency and compressibility. The thin fabric requires care around rock and sharp gear; we would choose it as a coat for breaks and as part of a layering system.

📋 Technical specifications

• Fit: Slim
• Total weight: 313 g (size M)
• Insulation: 900FP European goose down with a fluorocarbon-free hydrophobic finish (140 g, size M UK)
• Outer fabric: 10D Pertex® Quantum recycled nylon ripstop with a fluorocarbon-free DWR (28 g/m²)

🛠️ Details that make the difference

• Compressible insulation for packing your warm layer in your backpack.
• For use in combination with an outer layer when conditions require it.

🎯 Use and fit

For mountain use and trips with cool breaks. Try it on with the layer you will wear underneath and avoid compressing the insulation with an overly tight shell.

❓ Before choosing

Fill power (FP) describes the expansion capacity of the down; it is not equivalent to a temperature rating. The fill weight, design, and your layering also play a role.

🔍 Comparison within the range

• Rab Mythic Alpine Light: hybrid construction with down and PrimaLoft Gold.