Summerlite is the lighter of the two by 86 g (3.0 oz).
Summerlite
Mummy Sleeping Bag
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Weights and prices are the manufacturer’s published figures. The lower weight and the higher R-value are highlighted.
| Summerlite Western Mountaineering | Mummy Sleeping Bag Zpacks | |
|---|---|---|
| Weight | 19.0 oz | 22.0 oz |
| MSRP | $535.00–$570.00 | $579.00–$669.00 |
| Temperature rating | 32°F (manufacturer rating) (manufacturer claim) | — |
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“The SummerLite is an ultralight summer sleeping bag designed for fast-moving backpackers, bikepackers, and thru-hikers chasing miles in warm weather. Weighing just 19 ounces, it delivers true ultralight performance without sacrificing comfort or warmth.”Full specs and prices for the Summerlite →
Source not recorded.
“Featuring a hood and a full length 2-way side zipper with an integrated draft tube and zipper guard to keep it breeze-free, the Mummy Bag will keep you warm, cozy, and comfy in the backcountry.”Full specs and prices for the Mummy Sleeping Bag →