Increases sleeping bag performance by up to 20°F (11°C) with dual-weight Thermolite® fabric. Our regular 80 g/m² is combined with panels of 110g/m² Thermolite® in the core body and foot bed areas adding extra warmth where most needed. The compact, shorter design shaves off excess weight while giving maximum warmth for torso and feet.
- Lighter weight, more packable than fleece
- Adds up to 20 degrees F /11 degrees C of warmth to a sleeping bag
- Mummy shape with a box foot
- Draw cord hood with mini cord lock
- Packs into its own 3 in x 5 in sil nylon stuff sack