New Womens Cetus Petrichor Jacket Women Waterproof Jackets

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A breathable, lightweight waterproof built for the mountains—ideal for fast-paced days in unpredictable weather.

Montane says: 

The Montane women’s Cetus waterproof jacket is a high-performance hardshell that offers exceptional breathability.

Built using our new PETRICHOR TECHNOLOGY™, the Cetus jacket has a recycled nylon 30D ripstop outer that will give you excellent weather protection (20,000mm hydrostatic head).

Designed to breathe as you move, the hydrophilic membrane within the Cetus transports water vapour and moisture away from the body during long hikes or mountain expeditions.

The harder you work, the harder this durable waterproof jacket works to ensure comfortable, efficient movement in the mountains

Our Verdict

Montane’s Cetus Petrichor Jacket is a lightweight, high-performance waterproof designed for fast-moving days in the mountains. Weighing around 370 grams, it balances weather protection with excellent breathability, making it a solid choice for hillwalkers and those tackling changeable conditions.

The jacket is built with Montane’s PETRICHOR 3-layer technology and boasts a 20,000mm hydrostatic head for waterproofing while maintaining an impressive breathability rating (<5 RET). The recycled nylon ripstop fabric is soft and flexible, avoiding the stiff, crinkly feel of some hardshells, while offset seams and a tailored fit allow for unrestricted movement.

The fully adjustable hood offers excellent coverage with a laminated peak for extra structure, ensuring clear visibility. YKK AquaGuard zips, hand pockets, and internal chest pocket provide reliable water resistance, while the laminated hem and cuffs add durability without unnecessary bulk.

Some may miss pit zips for added ventilation, but the fabric’s breathability handles moisture well, even during high-output activities. The jacket also packs down small, making it easy to stow in a rucksack when not in use.

Lightweight, breathable, and built to handle the elements, the Cetus Petrichor is a dependable waterproof for mountain adventures.

– Reviewed by Ultralight Outdoor Gear

Features

• PETRICHOR TECHNOLOGY 3L 100% Nylon (recycled) 30D Ripstop offers excellent wet weather protection (20k Hydrostatic Head) and exceptional moisture management (<5 RET)
• Features Covered YKK AQUAGUARD zipped hand pockets for additional wet weather protection, and YKK zipped internal chest pocket
• YKK AQUAGUARD 2 way centre front zip
• Fully adjustable hood offers precision adjustment and unhindered vision
• Laminated peak, hems and cuff tabs reduce seams, weight and improve durability
• Fully adjustable hem
• OFFSET seam intersections improve construction, durability and comfort
• Articulated sleeves with grown on hook and loop adjustment
• Our new fit block provides uninhibited movement, comfort and performance whilst allowing for correct layering systems

Specifications

• XSmall (UK 08) weighs: 346g
• Small (UK 10) weighs: 358g
• Medium (UK 12) weighs: 370g
• Large (UK 14) weighs: 375g
• XLarge (UK 16) weighs: 387g
• Back Length: 68cm
• Regular Fit

Material & Construction

• PETRICHOR TECHNOLOGY 3L 100% Nylon (recycled) 30D Ripstop offers excellent wet weather protection (20k Hydrostatic Head) and exceptional moisture management (<5 RET)
• Shell Face:100% NYLON (RECYCLED)
• Shell backer: 100% NYLON (RECYCLED)

Help & advice:

• About Montane
• Montane Petrichor Technology Explained
• Recycled Content in Outdoor Gear.
• Choosing a Shell Jacket
• Time-Saver Guide to Choosing a Waterproof Jacket
• Time-Saver Guide to PFC Free
• Montane Down Ranges Explained
• Montane Shell Ranges Explained