Mountain Equipment Aerotherm Men's Jacket

A lightweight, wind-resistant, and quick-drying layer that offers added warmth, tailored for hiking and running in the mountains.

For many members of the Mountain Equipment team, the Aerotherm Jacket has become the preferred choice for energetic mountain outings in moderate weather conditions. It stands out as one of the most adaptable jackets in the range, designed to meet the requirements of a wide variety of mountain activities. This piece blends moisture management and wind protection effortlessly, making it a reliable companion for long days on the move—whether that involves running, hiking, or scrambling up rocky faces.

The jacket’s outer shell is crafted from EXOLITE 45, a double weave soft shell fabric that is windproof, breathable, and subtly stretchy. This makes it an ideal barrier against blustery conditions while remaining comfortable and flexible enough for active use. Inside, a soft, micro-grid lining works efficiently to wick moisture away during intense uphill pushes, helping to prevent dampness and discomfort. This same lining adds a welcome layer of insulation on breezy ridgelines and open summits. Together, these fabrics dry rapidly, keeping wearers comfortable in unpredictable mountain weather and during stop-start activities.

Engineered with a streamlined, Active fit, the Aerotherm eliminates unnecessary bulk and layers neatly beneath a waterproof shell when conditions demand it. A drawcord-adjustable hem allows for fine-tuning of fit, while elastane-bound cuffs help seal out the wind. The adjustable Mountain Hood, edged with elastic, provides secure coverage in blustery weather or when running, and it neatly rolls away when not required. The sleeves feature a reversed micro-grid lining to avoid catching on other layers, and articulated shaping ensures freedom of movement during technical climbs or scrambles. Essentials can be safely stowed in zipped hand and chest pockets, and the jacket packs down into one of its own pockets, complete with dual carry loops for attachment to a harness or backpack.

Features

Materials

• The ultralight EXOLITE soft shell fabric offers resistance to wind, is durable, and allows for easy movement thanks to its stretch.
• The lining is made from recycled micro-grid fabric that actively wicks moisture to regulate temperature and maintain comfort against the skin.
• The primary fabric used is EXOLITE 45 double weave soft shell (45g/m²) treated with a PFAS-free durable water repellent finish.

Patterning & Design

• The jacket is shaped with an Active fit that eliminates excess fabric, allowing full freedom of movement.

Hood Configuration

• The Mountain Hood is adjustable to offer added protection during poor weather.
• The hood can be rolled down and stowed neatly when not in use.

Pocket Configuration

• There are two zipped hand pockets for easy access to essentials.
• A single zipped chest pocket provides additional secure storage.
• The jacket compresses into one of the hand pockets and includes twin karabiner carry loops for attachment.

Centre Front Zip

• The jacket features a robust YKK® moulded centre front zip.

Cuffs & Sleeves Configuration

• Low-bulk, elasticated cuffs help to block out wind while maintaining comfort.
• The sleeves are articulated and pre-shaped to allow natural and unrestricted movement.

Waist & Hem Construction

• Dual drawcords at the hem provide a secure fit that remains comfortable under a harness or rucksack hipbelt.

Further Features

• The jacket is designed and refined in the United Kingdom.
• It is made to endure and is supported by Mountain Equipment’s Product Lifetime Guarantee.
• Mountain Equipment proudly partners with the Fair Wear Foundation, supporting fair labour practices.

Specifications

Technology

	Exolite EXOLITE is our series of durable double-weave stretch soft shell fabrics.
	Fair Wear As a member of Fair Wear, Mountain Equipment is committed to implementing the highest standards of working conditions.

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