#6 on this list
Flylite 36
Western Mountaineering
The Western Mountaineering Flylite 36 is built for summer alpine traverses and fastpacking routes where dropping grams from the pack is the single biggest priority. Weighing less than a pound, the Flylite retains Western Mountaineering’s legendary craftsmanship while paring materials down to absolute essentials. It pairs high-grade 850-plus fill down with a gossamer 10-denier shell fabric that feels almost weightless over the body. Unlike many bags hovering around the 15-ounce threshold, the Flylite includes a full-length, lightweight #3 zipper. This allows you to open the bag completely for use as an informal blanket in warm conditions or seal it tightly around the shoulders when the wind picks up. The trade-offs lie in its specialized envelope: the 10-denier fabric requires conscious protection against rough shelter floors, and the athletic mummy profile restricts shifting during sleep. It excels for fast-and-light purists who understand its material limits. **Highlights** - Weighs under a pound while offering a full-length zipper - Premium 850-plus fill goose down with exceptional lofting speed - Full unzipping capability allows use as a flat quilt in summer - Lightweight micro-baffle design prevents down migration - Clean internal draft tubes protect against zipper chill **Watch-outs** - 10-denier shell requires meticulous care against abrasion - Narrow shoulder width leaves little room for layer stacking - Temperature limit of 36°F restricts it to true three-season duty
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#7 on this list
Revelation APEX 30
Enlightened Equipment
The Enlightened Equipment Revelation APEX 30 delivers a pragmatic alternative to the down-dominated ultralight market. Built around Climashield APEX continuous-filament synthetic insulation, this quilt is aimed directly at backpackers hiking in consistently wet environments, maritime climates, or regions with heavy morning condensation. For long stretches on the trail where drying down insulation is impossible, synthetic fill provides peace of mind by maintaining structure and warmth even when damp. Beyond moisture resilience, the Revelation APEX is exceptionally budget-friendly compared to 900-fill down alternatives. The quilt layout features an openable footbox with an integrated zipper and shock-cord cinch. The core compromise is bulk and weight: synthetic insulation does not compress as small as natural plumage, and the quilt will occupy noticeably more pack volume. Over repeated seasons of tight compression, synthetic insulation will also lose its loft faster than down. **Highlights** - Climashield APEX synthetic insulation retains warmth in wet conditions - Exceptional cost-to-performance ratio for budget-minded backpackers - Versatile footbox can be opened flat as a blanket or zipped shut - Dependable pad-attachment straps keep drafts controlled - Hypoallergenic and straightforward to clean and maintain at home **Watch-outs** - Bulkier compressed size demands more pack volume than down bags - Heavier overall weight for the given temperature threshold - Synthetic insulation breaks down faster under long-term compression
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Specs side by side
| Spec | Flylite 36 | Revelation APEX 30 |
|---|---|---|
| Temp Rating | 36°F (2°C) | — |
| Total Weight | 14.5 oz (regular length) | — |
| Fill Power | 850+ fill goose down | — |
| Fill Weight | 7 oz (regular length) | — |
| Shell Fabric | 10-denier ripstop nylon | Ultralight ripstop nylon with DWR finish |
| Shoulder Girth | 59 inches | — |
| Quilt Style | — | Open quilt with convertible footbox |
| Insulation | — | Climashield APEX continuous-filament synthetic |
| Temperature Rating | — | 30°F (-1°C) |
| Approximate Price | — | $230 |
| Primary Benefit | — | Moisture resilience and low purchase cost |
What our reviewers liked and didn't
Flylite 36
- Weighs under a pound while retaining a full-length zipper
- Generates exceptional warmth-to-weight ratio from 850+ fill down
- Full zipper allows opening flat as a blanket in hot weather
- Compresses down to the volume of a one-liter bottle
- 10-denier shell requires meticulous care against abrasion
- Trim 59-inch shoulder girth limits internal movement
- Strict 36-degree rating provides minimal buffer near freezing
Revelation APEX 30
- Climashield APEX retains warmth and loft in humid, wet environments
- Substantially lower cost than high-fill-power down sleeping systems
- Convertible footbox unzips completely flat for warm-weather venting
- Low-maintenance synthetic fill is hypoallergenic and easy to wash
- Consumes significantly more pack volume than comparable down quilts
- Continuous-filament batting breaks down faster under years of compression
- Carries a heavier base weight than equivalent down-insulated models
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