- Quilt-through construction
- Chevron stitching
- Efficient, form-fitting hood
- Hip-length, two-way locking zipper
- Zipper draft tube with anti-snag design
- Zippered foot vent
- Internal liner loops
- External snap loops allow bag to function as a liner
- Sleeping pad security loops
- Hang loops for storage
- Micro FatMan and Ribbon™ drawcords
- Micro captured cordlock
- Ground-level side seams prevent heat from escaping
- Differential cut to maximize loft and warmth
- Ultralight compression stuff sack included
- Storage sack included
| Model: | Light Year XP 40 (Fall 2009) | ||
| Designer: | Kelty | ||
| Temp Rating: | 40 | ||
| Weight: | 1 lb. 14 oz. (Reg.) 2 lb. 1 oz. (Long) |
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| Insulation: | Climashield XP | ||
| Stuff size: | 7 in. x 12 in. (Reg) 7 in. x 12 in. (Long) |
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| Shell: | NPR241T nylon-polyester diamond cross-dye ripstop | ||
| Shoulder: | 62 in. (Reg) 64 in. (Long) | ||