next-generation Thermo Gill™ vents, with a new multistage zipper system that dramatically increases the usable temperature range of the bag and allows fine-tuning of comfort from within. Sonic’s chevron baffle construction better compartmentalizes down, eliminating migration and keeping the down evenly lofted.
| Specs | 0℉ / Short |  |
|---|---|---|
| Minimum Weight | 3 lb , 2 oz / 1.42 kg | Â |
| Packed Weight | 3 lb , 4 oz / 1.48 kg | Â |
| Packed Size | 13.0 x 9.5 in dia / 33 x 24 cm dia | Â |
| ISO Comfort | 14F / -10C | Â |
| ISO Limit | 0F / -18C | Â |
| Fill Type | 800 FP Down | Â |
| Specs | 0℉ / Regular |
|---|---|
| Minimum Weight | 3 lb , 4 oz / 1.47 kg |
| Packed Weight | 3 lb , 6 oz / 1.53 kg |
| Packed Size | 13.5 x 9.5 in dia / 34 x 24 cm dia |
| ISO Comfort | 14F / -10C |
| ISO Limit | 0F / -18C |
| Fill Type | 800 FP Down |
| Specs | 0℉ / Long |
|---|---|
| Minimum Weight | 3 lb , 9 oz / 1.62 kg |
| Packed Weight | 3 lb , 12 oz / 1.7 kg |
| Packed Size | 14.0 x 9.5 in dia / 36 x 24 cm dia |
| ISO Comfort | 14F / -10C |
| ISO Limit | 0F / -18C |
| Fill Type | 800 FP Down |
