Western Mountaineering Antelope MF -15C

Conquer the Cold with the Western Mountaineering Antelope MF sleeping bag.

Western Mountaineering has earned a legendary reputation in the U.S., and now, adventurers in the UK and worldwide are discovering what makes their gear exceptional. Built with the highest-quality materials and expert craftsmanship, their sleeping bags offer the ultimate balance of warmth and weight.

The Antelope MF is your trusted companion for high-altitude adventures where serious warmth and weather resistance are non-negotiable. Whether you're tackling alpine bivies, summer mountaineering, or extended backcountry treks, this bag delivers top-tier insulation without the bulk.

• Unmatched Warmth & Protection – Packed with 850+ fill power goose down, the Antelope MF provides unbeatable loft and heat retention, keeping you comfortable in extreme conditions.
  
• Lightweight Yet Rugged – Weighing just 2 lbs 7 oz, it’s designed to keep your pack light without compromising performance.
  
• Weather-Resistant & Breathable – The MicroLite XP™ shell repels moisture while allowing airflow, ensuring a dry, comfortable night’s sleep.
  
• Precision-Engineered for the Elements – A full down-filled collar and draft tube lock in warmth, while the efficient mummy cut enhances thermal efficiency without restricting movement.

When you’re venturing into the unforgiving heights, trust the Western Mountaineering Antelope MF to keep you warm, dry, and ready to push further.

The Brand

More than 40 years ago, two northern California mountaineers came together with a vision of uncompromised excellence. Their inspired dedication and persistence built the foundation of this now globally renowned brand. Western Mountaineering's history is more than just two young men building sleeping bags: even today WM still remains a small independent company, making all of its sleeping bags in the original factory in San Jose (USA), whilst constantly striving to give their customers the finest down products money can buy.

Features

• Filled with 850+ Fill Power ethically-sourced premium goose down
  Continuous baffles allow you to shift down for more insulation in colder weather
  Full-length #5 YKK zipper provides a smooth, easy unzipping experience while saving weight
  Insulated Draft Tube blocks cold air and keeps the torso better insulated
  Durable 20 denier MicroLite XP™ outer shell stays more breathable and water resistant longer than traditional polyesters
  Fully insulated draft collar seals in inner heat without adding much weight
  Comes with ultralight stuff sack and breathable mesh storage bag
  2 lbs. 7 oz. Total Weight

More Help? For further assistance on choosing your down sleeping bag, please view the various help videos available under the 'Videos' tab above. We also have an article explaining fill power, the pros and cons of down over synthetic insulation and more info on caring for your bag available to view here:A Guide to Down Sleeping Bags.

Specifications

• Shape: Mummy (w/top collar)
• Compressed Size: 20x43 cm
• Outer Fabric: 20D Microfibre
  
• Zip: Left
• Length: 180cm (6ft)
• Comfort Limit: -15°C
• Manufacturer: Western Mountaineering
• Fill Power: 850+US Power Goose Down
• Weight: 1105g
• Fill Weight: 735g
• Loft: 18cm
• Inside Girth: 157cm (shoulder) / 135cm (Hip) / 99cm (foot)
• Colour: Royal Blue/Black