Mountain Equipment Senja Men's Jacket

The Senja Men’s Jacket is an excellent all-around option for outdoor adventurers, offering a blend of warmth, protection, and portability. Whether hiking, climbing, or skiing, this jacket is perfect for cold weather, providing enough insulation for harsh conditions while remaining lightweight and easy to pack when not in use. It’s designed to perform across various terrains, from high-altitude ascents to wintry valleys.

Filled with 220g of high-grade down, the Senja provides solid insulation, sitting between heavier models like the Lightline and lighter alternatives such as the Frostline and Earthrise, giving it a versatile warmth profile.

Its outer fabric is engineered to block wind and repel moisture, making it reliable against snow and light rain. The jacket’s design accommodates layers underneath without compromising heat retention, while the hood is easily adjustable for added coverage in strong winds.

Inside, a secure pocket offers a safe place for valuables and essentials, keeping them protected and warm for when they’re needed.

Features

• Windproof, breathable, and water-resistant DRILITE® Loft outer fabric for protection and comfort.
  
• Pure Down insulation with excellent warmth-to-weight ratio, compressible and durable.
  
• Stitched-through baffle construction allows loft without restricting movement.
  
• Adjustable Mountain Insulated Hood with an integrated collar for added warmth.
  
• Two large outer hand pockets for storing gloves and other essentials.
  
• Inner security pocket for small item storage.
  
• Packs into an included stuff sack for easy portability.
  
• Durable construction.
  
• Designed in the UK and made in a Fair Wear Foundation-audited factory in China.

 

Specifications

Weight	580g/1 lbs 4.5ozs
Materials	Shell: DRILITE® Loft 40D / 56g; 100% Polyamide with DTY yarns and microporous PU coating Lining: 20D / 37g; 100% Recycled Polyamide Fill: 700 fill 90-10 Duck Down (195g Size UK 12)

CONSTRUCTION

• Stitched-Through baffles
• 8cm baffle height
• Internal centre front zip baffle with fastener

 

POCKETS

• Hand Pockets - DRILITE® Loft anti-snag draft backer
• Insulated zip plackets

 

HOOD

• Mountain Insulated Hood
• Integrated collar with DRILITE® Loft outer shell
• HALO baffle
• Internal hood cord routing
• Internal Duraflex® cord locks
• Rear tab volume adjuster

 

CUFFS & SLEEVES

• Pre-shaped sleeves
• Elasticated cuff with Velcro® fastener

 

HEM

• Adjustable drawcord pullers (2)
• Dual-tether hem drawcords wont snag

 

ZIPS

• Centre Front: YKK® #5 VISLON® zipper with 2-way non-locking slider
• Pockets: YKK® #3 reversed coil zipper with non-locking slider
• Inner Pocket: YKK® #3 reversed coil zipper non-locking slider

 

PERFORMANCE

• Hydrostatic Head: 1600mm (ISO 811)
• Breathability: MVTR: 7000g m2 24h-1

 

Technology

	Fair Wear Fair Wear ensures that the clothing is produced under high standards that promote ethical working conditions.
	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.
	Down Codex The DOWN CODEX® is a multi-award-winning certification scheme that considers the environmental, ethical and animal welfare matters relating to their down supply chains. It is grounded in comprehensive and transparent auditing that ensures traceability and quality.
	Drilite Loft Drilite® Loft is an exclusive range of highly water-repellent fabrics used in Mountain Equipment's 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.