Western Mountaineering Antelope MF Sleeping Bag - Rated to -15°C

The Western Mountaineering Antelope MF is a -15°C down sleeping bag built for the widest possible three-season range. It's for climbers and backpackers who want one bag that covers early spring through late autumn and still copes when an alpine night turns properly cold.

850+ fill power goose down lofts to 18cm (7") and sits in continuous baffles, so you can shift it over you on cold nights or spread it out when it's milder. A full down-filled draft collar and draft tube keep the warmth in, and the 20D MicroLite XP™ shell is breathable and water-resistant – handy for frosty bivvies and damp tents. The cut is roomy for a mummy bag, with space to sleep in a light layer.

Choose it over a lighter three-season bag if you camp high, sleep cold or want a margin on spring and autumn trips that flirt with winter.

Why you'll love it

• Rated to -15°C – true extended three-season warmth
• 850+ fill power goose down – long-lasting loft, high compressibility
• 18cm (7") of loft – substantial insulation for the weight
• Continuous baffles – shift the down to suit the conditions
• Full down-filled draft collar and tube – seals cold air out
• Water-resistant 20D MicroLite XP™ shell – breathable and durable

Good to know

• Roomy mummy fit with space for light layering
• Total weight: 1050g (165cm), 1105g (180cm), 1160g (200cm)
• Fill weight: 680g (165cm), 735g (180cm), 795g (200cm)
• Girth, shoulder/hip/foot: 157/135/99cm (165cm and 180cm), 160/137/99cm (200cm)
• Packed size: 20 x 43cm, all sizes
• Includes an ultralight stuff sack and a breathable mesh storage bag
• Made in the USA

Who it's for

Alpine climbers, cold-weather backpackers and high-altitude trekkers who want one substantial bag for spring-to-autumn use, alpine bivouacs and shoulder-season camping. Good for any level of experience if you know you sleep cold.