




Built for the people who count on it
FTRSS Overbag +35°F Mummy Sleeping Bag specifications
| Temperature rating | +35°F (+2°C) |
|---|---|
| Use | Overbag for all mummy-style FTRSS systems |
| Insulation | Lamilite |
| Shape | Mummy, cut slightly larger to fit over a core bag |
| Sizes (length x width) | Regular/Regular 82 x 33 in · Regular/Wide 82 x 36 in · Long/Wide 92 x 36 in |
| Weight | Regular/Regular 2.5 lbs · Regular/Wide 2.75 lbs · Long/Wide 3 lbs |
| Colors | 10 shell colors (interior color varies) · left or right zipper |
| Made in | Colorado, USA |
| Note | Long/Regular is not available in Boat Foot |
FTRSS Overbag +35°F Mummy Sleeping Bag FAQ
What does FTRSS stand for?
Flexible Temperature Rated Sleep System. You zip a core bag inside this overbag to reach a much colder rating than either bag alone.
Why is the overbag bigger than my core bag?
It's cut slightly larger so it fits comfortably over any of our other bags. A roomier bag also works better on warm nights.
How much does it weigh?
Regular/Regular is 2.5 lbs, Regular/Wide is 2.75 lbs, and Long/Wide is 3 lbs.
Will it stay warm if it gets wet?
Lamilite is a continuous filament insulation that keeps insulating when it gets damp, and it dries fast.
Is it covered by a warranty?
Yes. It's covered by the Wiggy's Limited Lifetime Warranty against defects in materials and workmanship for the original purchaser.
Still have a question? Call 970-241-5921. A real person answers.
Every piece is built in our own shop.
Built once. Used for decades.
One insulation. Everything we make.
Most bags stitch right through their insulation. Every seam is a cold spot. Wiggy's Lamilite is one continuous layer with nothing stitched through it. It breathes, keeps working when it gets damp, and dries fast.
- For families: no cold spots, so everyone sleeps warm.
- In the field: keeps insulating when it's wet.
- For programs: in service for decades, not seasons.
- At the edge of the map: rated to -60°F.
Outfitting a team?
Rescue units, wilderness programs, camps, and research teams: we'll help you spec the right bags and quantities.