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Nothing Extra. Everything You Need.
The Western Mountaineering MonoLite is the definition of minimalist performance-designed for climbers and adventurers who want maximum efficiency with zero unnecessary features.
With a micro-baffled construction, 850+ fill power down, and ultralight 10D shell, it delivers reliable warmth down to 3°C while packing down to the size of a Nalgene bottle.
Built for fast and light missions, the MonoLite strips away excess weight while retaining essential performance features like an insulated collar and draft tube.
Ultra-minimal design - No unnecessary features
Extremely lightweight - From ~370g
Packs tiny - Bottle-sized packed volume
850+ fill power down - Premium insulation
Built for speed - Perfect for fast & light missions
Perfect for:
Fastpacking
Bikepacking
Climbing trips
Adventure racing
Minimalist backpacking
Designed for those who count every gram
Stripped-back design
Provides:
Maximum weight savings
Reduced bulk
High efficiency
Ideal for mild conditions
Best for:
Summer use
Warm climates
Layered sleep systems
Precision insulation design
Improves:
Down distribution
Thermal efficiency
Elimination of cold spots
Weight-saving design
Allows:
Ventilation control
Minimal bulk
Reliable operation
Essential heat retention
Helps:
Seal in warmth
Prevent heat loss
Maintain comfort
Ultra-light and eco-conscious
Benefits:
Breathability
Water resistance
Reduced environmental impact
Packs to bottle size
Perfect for:
Bikepacking setups
Small packs
Minimalist kits
Temperature Rating: 3°C
Fill: 850+ Fill Power Goose Down
Loft: 9.5 cm (3.75")
Shell Fabric: 10D nylon with PFC-free DWR
Weights:
180cm: 370g
200cm: 400g
Fill Weights:
180cm: 192g
200cm: 214g
Girth (Shoulder/Hip/Foot):
180cm: 150 / 129 / 99 cm
200cm: 150 / 132 / 99 cm
Packed Size:
All sizes: ~12.5 x 25.5 cm
Origin: USA
Includes:
Ultralight stuff sack
Breathable mesh storage bag
Ultralight backpackers
Fastpackers
Bikepackers
Climbers
Adventure racers
Ships within 48 hours · Estimated delivery Jun 22 - Jun 27
US$40
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