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Apache MF – Lightweight Cold-Weather Sleeping Bag

The Apache MF is a lightweight cold-weather sleeping bag built for alpine missions, shoulder-season trips, and three-season backpacking. At just 2lbs 1oz, it delivers impressive warmth in a compact, trail-ready design.

This bag is made for backcountry travelers who push into unpredictable weather and colder elevations. It features 850+ fill power goose down for high-loft insulation that compresses easily and performs reliably in freezing conditions.

The MicroLite XP™ shell resists wind and water while remaining breathable. It protects the down from moisture, condensation, and spindrift without trapping excess heat or sweat.

A trim, thermally efficient cut reduces dead air space. This helps the bag warm up quickly and retain body heat more effectively. It’s a design that saves weight without sacrificing warmth.

The full down-filled draft collar and insulated draft tube seal in heat and block cold air from entering through the zipper. You stay warm, even when conditions outside turn frigid.

The Apache MF packs small, moves fast, and performs in cold environments. Use it for alpine bivies, lightweight basecamps, and shoulder-season adventures where versatility is essential.

It’s light enough for extended backpacking trips and warm enough for frosty nights in the high country. You don’t have to choose between weight and protection—this bag gives you both.

Proudly made in the USA, the Apache MF is a trusted cold-weather performer from Western Mountaineering. When your route includes snow, wind, or shoulder-season storms, the Apache MF is ready.

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. Total Weight

Specifications

• Shape: Mummy (w/ full collar)
• Fabric: 20D Microfiber
• Loft: 6"
• See photos for spec chart