Rab Men's Cirrus Flex Jacket - Lightweight Insulated Puffy Coat for Hiking, Skiing & Climbing | Black | Small

The Rab Men’s Cirrus Flex Jacket is a versatile insulator built to work across seasons, from early morning treks to hut trips in deeper cold. It delivers loft and warmth similar to down, yet uses a synthetic fill that performs when conditions are damp. The shell is windproof and treated with a fluorocarbon-free DWR, offering reliable weather protection without adding bulk. Flexible fleece panels along the sides enhance mobility for quick, technical moves on the trail or wall.

Warmth, loft, and weather protection

Inside, recycled Primaloft Silver Rise delivers a lofty warmth that cushions you during cool ascents and damp days. The outer and lining use 20D recycled Pertex Quantum, a lightweight fabric chosen for durability and wind resistance. The combination creates a jacket that stays warm when you’re moving fast or paused between climbs, yet compresses neatly into a pack for multi-day trips.

• Serious warmth with lightweight insulation that travels easily in a pack.
• Primaloft Silver Rise mimics down loft while staying resilient in damp environments.
• Pertex Quantum shell and fluorocarbon-free DWR deliver wind protection and weather resistance.
• Stretch Thermic Fleece sides offer mobility for hiking, climbing, and skiing.
• Practical storage: two zippered hand pockets, one zippered internal pocket, plus an integrated storage pocket.

Design, fit, and everyday practicality

The Cirrus Flex focuses on a lightweight, packable profile without compromising warmth. A smooth center front zipper enables easy layering, and its tailored cut adapts to a variety of baselayers and shells. Weighing about 13.7 ounces, it’s built to be a reliable on-body layer or a compact travel companion.

• Outer and lining: 20D recycled Pertex Quantum for a light, durable shell.
• Insulation: Recycled Primaloft Silver Rise 137g for steady warmth.
• Sides: Thermic Stretch Fleece 215g to maintain mobility.
• Weight: approximately 13.7 ounces for a balanced warmth-to-weight ratio.
• Care and construction: fluorocarbon-free DWR and robust zippers for long-term wear.

Ideal use cases

Designed for hiking, climbing, and skiing, the Cirrus Flex adapts to cool mornings, damp mid-days, and brisk evenings. It pairs well with a weather shell when wind or precipitation picks up and can be layered under or over depending on activity and temperature. For multi-day outings, its packability helps keep extra warmth ready without weighing you down.