Mountain Equipment Annapurna Men's Jacket

Since its release in 1970, Annapurna remains a popular choice for extended use in sub-zero conditions and Polar travel. 

Fifty years later, the Annapurna remains a go-to for extreme cold, combining the best insulation technology with design insights from countless high-altitude and polar expeditions. It’s built for peaks up to 7000 meters and extended sub-zero conditions.

The jacket’s 700-fill duck-down insulation is held in box-wall chambers that trap air and retain body heat. A double-layer baffle construction in the arms boosts warmth, wind resistance, and mobility, reducing cold spots and down migration in key areas like the elbows.

Polarloft synthetic insulation panels across the chest, shoulders, and lower sleeves offer extra wind protection and resist compression from heavy packs. The DRILITE® Loft outer is windproof and water-resistant, protecting against snow and harsh winds.

Expedition features include a pleated halo baffle around the hood, which adjusts to fit snugly around the face, and a neck ruffle that traps warm air, keeping the head and neck insulated.

The modern, streamlined fit allows full movement, while durable moulded zips work well in harsh weather and with gloves. Two large internal drop pockets provide storage for gloves or essentials, and an inner zipped pocket secures electronics. Double front chest pockets and hand warmer pockets offer extra space for food, maps, and other gear.

Features

Insulation

• Contains 388g (size large) of premium Duck Down with a minimum 90/10 ratio and 700 fill power, delivering remarkable warmth with minimal weight and pack volume.
• Insulation is carefully tailored using a baffle-by-baffle method to achieve maximum thermal efficiency for the amount of down used.
• Down is responsibly sourced in line with DOWN CODEX© and RDS standards, ensuring high levels of animal welfare.
• Each garment includes a unique DOWN CODEX© code that provides full traceability of the down, including precise content and fill power data.

Materials

• Utilises DRILITE® LOFT fabric with a PU coating and a 40 Denier outer shell that is lightweight yet highly durable and weather-resistant, with a Hydrostatic Head rating of 1500mm.
• Features a 20 Denier woven downproof lining that enhances moisture management, comfort, and packability.

Patterning & Design

• Employs box wall baffle construction throughout the body for maximum insulation, combined with offset double-layer baffles in the sleeves to ensure warmth while maintaining excellent freedom of movement.
• Designed to layer comfortably over additional mountain clothing when needed.

Hood Configuration

• The Mountain HC Insulated Hood is fully adjustable and engineered to work seamlessly with or without a helmet, offering excellent coverage and comfort even during prolonged use.
• Incorporates a DRILITE® LOFT 30 Denier inner hood lining to reduce moisture ingress from melting snow.

Pocket Configuration

• Features two zipped handwarmer pockets lined with Octoyarn fleece for added warmth and comfort in cold conditions.
• Includes two zipped chest pockets that provide easy access to essential items.
• Comes with two internal drop pockets ideal for storing gloves, a water bottle, or other items that benefit from retained warmth.
• Offers a zipped internal security pocket for the safekeeping of valuables.

Centre Front Zip

• Equipped with a 2-way YKK® moulded centre front zip designed for ease of use while wearing gloves.
• Includes an offset insulated rear baffle to reduce heat loss and block wind penetration.

Cuffs & Sleeves Configuration

• Cuffs are both adjustable and elasticated, making them glove-friendly and easy to operate.
• Sleeves are articulated to promote full and natural range of motion.

Waist & Hem Construction

• Fitted with dual tether drawcords at the hem to allow for a custom fit and improved thermal retention.

Further Features

• Supplied with a lightweight stuff sack for compact packing and storage.
• Main fabric is expertly manufactured in Japan.
• Designed and developed in the United Kingdom and ethically produced in China.
• Engineered for longevity and supported by the Product Lifetime Guarantee.
• Mountain Equipment is an active member of the Fair Wear Foundation, committed to fair labour practices.

Specifications

Technology

	Fair Wear Fair Wear ensures that the clothing is produced under high standards that promote ethical working conditions.
	Drilite Loft Drilite® Loft is an exclusive range of highly water-repellent fabrics used in our insulated clothing and equipment. The original Drilite® Loft introduced almost 30 years ago, was years ahead of its time: a highly breathable, lightweight, and very water-repellent fabric. Those three hallmarks continue with our modern Drilite® Loft fabrics.
	Down 700 Down is the finest insulator that Mountain Equipment has. Its warmth-to-weight ratio, compressibility, long lifespan, and softness are yet to be matched by manmade insulations. For all but the most serious expeditions, Duck Down is a great choice for both insulated clothing and equipment.
	Offset construction Offset construction products have a unique structure that imparts greater wind resistance, greater warmth and fewer cold spots than traditionally constructed down products. Offset construction is more wind resistant, has fewer cold spots and provides more even warmth than traditional construction methods. It is also softer and more comfortable to wear than a full box-wall jacket.