Lightweight Versatility. Cold-Weather Confidence. The Western Mountaineering Apache MF is a high-performance 2-3 season sleeping bag that pushes into colder conditions without adding unnecessary weight. With 6" (15cm) of loft and 850+ fill power goose down, it delivers reliable warmth down to -9°C, making it ideal for shoulder-season trips, alpine bivouacs, and unpredictable weather. Its efficient mummy cut keeps weight low while heating quickly, while features like a full down collar and continuous baffles ensure you stay warm when temperatures drop. Why You'll Love It Lightweight - Around 900g total weightWarm to -9°C - Extends into colder conditions850+ fill power down - Premium insulationCompact pack size - Easy to carryVersatile - True 2-3 season performance Built for Versatile Cold-Weather Use Perfect for: Spring & autumn climbingAlpine bivouacsLightweight backpackingCool summer nights at altitudeFast & light missions Designed for climbers who want one bag that covers multiple seasons Performance Features Extended 2-3 Season Warmth (-9°C) Reliable performance in cooler conditions Keeps you: Warm during shoulder seasonsPrepared for temperature dropsComfortable across varied climates 850+ Fill Power Goose Down Premium insulation Provides: Excellent warmth-to-weight ratioLong-lasting loftHigh compressibility Continuous Baffle Construction Adjustable insulation system Allows: Shifting down for colder nightsBalanced insulation in milder weatherGreater versatility Full Down-Filled Draft Collar Seals in warmth Helps: Reduce heat lossImprove thermal efficiencyAdd comfort in colder temps MicroLite XP™ Shell 20D breathable, water-resistant fabric Benefits: Weather resistanceBreathabilityDurability in mixed conditions Efficient Mummy Cut Performance-focused shape Provides: Faster heat retentionLower weightReduced bulk Technical Specifications Temperature Rating: -9°CFill: 850+ Fill Power Goose DownLoft: 15 cm (6")Shell Fabric: 20D MicroLite XP™ Weights:165cm: 850g180cm: 905g200cm: 965g Fill Weights:165cm: 480g180cm: 540g200cm: 595g Girth (Shoulder/Hip/Foot):165cm: 150 / 130 / 97 cm180cm: 150 / 130 / 97 cm200cm: 152 / 130 / 97 cm Packed Size:All sizes: 20 x 38 cm Origin: USA Includes:Ultralight stuff sackBreathable mesh storage bag Perfect For Alpine climbersBackpackersFast & light adventurersShoulder-season useMulti-day trips
