Propper Sleeping Bag Inner
Best modular insulation for serious outdoor adventurers facing cold field conditions.
A rugged, mil-spec component designed for modular sleep systems. It provides essential thermal regulation for field use, prioritizing durability and compatibility over lightweight packability.
$179.00
More Type I Sleeping Bag options
Who it's for
- Campers wanting to minimize sleeping bag maintenance and washing
- Field users needing gear that survives rugged, daily abuse
- Backpackers seeking a slight temperature boost for chilly nights
Who should skip it
- Ultralight hikers prioritizing minimal pack weight and space
- Adventurers in wet climates needing quick-drying, moisture-wicking gear
- Travelers hoping for a standalone sleep system for varied temperatures
Performance breakdown
Thermal Efficiency
Reliable warmth down to 20°F when paired with proper layering.
System Integration
Designed specifically to nest perfectly within the standard military bivy.
Build Standards
Strict adherence to Mil-Spec GL-PD-14-01 ensures rugged, field-ready durability.
Versatility
Modular design allows for temperature adjustment with additional liner layers.
Weight Efficiency
Built for durability over ultralight backpacking, adding noticeable pack weight.
Availability
Currently out of stock, making it difficult to acquire immediately.
Key Specs
Material
Ripstop
Liner Shape
Mummy
Warmth Added
5.0 degrees Fahrenheit
Weight
38.4 ounces
Length
78.0 inches
Width
34.5 inches
Closure Type
Zipper
Intended Use
Camping
Temperature Rating
20°F
Water Resistance
Water Resistant
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