Rab Men's Cirrus Flex Hoody

Rab Men's Cirrus Flex Hoody

A light, packable synthetic insulated hoody re-engineered with high-lofting PrimaLoft Silver RISE insulation and Thermic stretch fleece side panels for year-round mountain use. The Cirrus Flex's larger baffles, fluorocarbon-free DWR, and breathable fleece panels make it versatile enough to wear as an outer layer in shoulder season and as a high-performance insulating midlayer when temperatures drop.

Why We Carry It
It's the synthetic insulated hoody we recommend for climbers, hikers, and backcountry skiers who want a light, packable layer with genuine stretch and breathability for variable conditions and high-output mountain use across multiple seasons.

Highlights

• PrimaLoft Silver RISE 100% recycled synthetic insulation at 157g — A high-lofting, quick-recovering synthetic insulation with larger baffles than previous Cirrus generations that allow more loft and better heat retention. Recovers quickly when wet for reliable warmth in damp mountain conditions where down insulation would compress and lose its thermal value.
• Thermic stretch fleece side panels at 215gsm — Rab's signature stretch fleece panels positioned at the sides and underarms for active breathability on sustained climbs and exceptional freedom of movement without the bulk of a fully insulated side panel. The feature that makes the Cirrus Flex genuinely different from a standard synthetic insulated hoody.
• 20D recycled Pertex Quantum outer and lining at 38gsm — A lightweight, durable face fabric and lining with fluorocarbon-free DWR for weather resistance without the environmental concerns of traditional fluorinated treatments. Shaved weight without compromising protection.
• Larger baffles for improved loft and warmth — Re-engineered baffle geometry that allows the PrimaLoft Silver RISE to loft more fully and trap more warmth than the previous Cirrus generation for meaningfully better warmth-to-weight performance.
• Helmet-compatible hood with fleece and synthetic insulation — Built with a combination of fleece and synthetic insulation to minimize volume under a helmet while maintaining warmth at the head for climbing, skiing, and mountaineering use where a bulky hood creates compatibility issues.
• YKK Vislon center front zip with insulated baffle and fleece-lined chin guard — A durable, reliable zipper system with an insulated baffle that eliminates cold spots along the zip and a fleece-lined chin guard that prevents zipper abrasion on sustained all-day wear.
• Articulated sleeves with semi-elasticated cuffs — Sleeve construction that follows the natural arm position for unrestricted movement without excess fabric bunching at the elbow during climbing, skiing, and scrambling.
• Packs into its own pocket — Compresses into one of its own hand pockets for compact storage in a pack without a separate stuff sack to lose.
• Single side hem adjustment with anti-snag tether — Seals in warmth at the waist without the standard two-cord hem system that creates snag points and management issues under a harness or pack hipbelt.
• 15.7-ounce weight at slim fit — A competitive weight for a fully featured insulated hoody with stretch side panels, a helmet-compatible hood, and PrimaLoft Silver RISE insulation for year-round mountain use.

Best For

Climbers, hikers, backcountry skiers, and mountain enthusiasts who want a light, packable synthetic insulated hoody with breathable stretch panels and quick-recovering insulation for year-round use in variable and damp mountain conditions where down insulation isn't the right choice.

Specs