Black Diamond Twilight Bivy
Best ultralight emergency shelter for fast and light alpine climbers.
This is the ultimate choice for weight-conscious alpinists who need a reliable, no-frills emergency shelter. It strips away all unnecessary bulk, offering a simple, breathable barrier that fits easily into any pack.
$189.95
Who it's for
- Ounce-counting alpinists prioritizing speed and minimal pack weight
- High-altitude climbers seeking a breathable layer for snow-covered ledges
- Minimalist backpackers needing a quick shelter in cramped or rocky terrain
Who should skip it
- Damp-climate hikers concerned about moisture buildup on their sleeping bags
- Four-season adventurers expecting torrential downpours or standing water
- Restless sleepers who prefer structured headspace and room to move
Performance breakdown
Weight Efficiency
Minimalist design sheds every unnecessary ounce for ultralight fast-packing missions.
Packability
Frameless construction compresses down to the size of a water bottle.
Weather Protection
NanoShield fabric handles harsh conditions but lacks full-tent storm coverage.
Breathability
Single-wall fabric manages condensation effectively during high-output alpine pursuits.
Ease of Entry
Shoulder-level zipper access is clever but requires some athletic maneuvering.
Interior Livability
Strictly for sleeping; don't expect to lounge or move around inside.
Key Specs
Material
NanoShield
Season Rating
4-season
Zipper Location
Shoulders
Water Resistant
Yes
Sleeping Bag Type
Bivy sack
Floor Area
18.75 Square Feet
Floor Dimensions
82 inches x 33 inches
Activity
Camping
Manufacturer Warranty
Limited Lifetime
Sleep Capacity
1 Person
Know before you buy
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Ask Metto anything about the Black Diamond Twilight Bivy before you decide.
