Western Mountaineering MegaLite 30°F
Specifications
| Weight | Packed Size (L) | Warmth Rating | Fill Weight | Fill Power | Fill Type | Sleeper Height | Seasons | Shape | MSRP |
|---|---|---|---|---|---|---|---|---|---|
| 1 lb 8 oz | 7 | 30°F | 12 oz | 850+ | Goose Down | Up to 6 ft (Regular) | 3-season | Mummy | $580.00 |
Comfort & Warmth
The Western Mountaineering MegaLite 30°F is designed to deliver three-season performance in an ultralight package without sacrificing comfort. Weighing just 1 lb 8 oz, it features a wider mummy cut that gives side sleepers and restless campers extra room to move, while its premium 850+ fill-power goose down and continuous baffle construction provide an impressive 4 inches of loft for excellent warmth and compressibility. Built for a 30°F (–2°C) comfort rating, the MegaLite includes thoughtful heat-retaining details such as a full-length #5 YKK zipper, insulated draft tube, and a top draft collar to seal in warmth on cold nights. The 12-denier ripstop nylon shell keeps the bag light, breathable, and durable, making it a reliable companion for multi-day trips. With a reputation for exceeding its stated warmth rating and offering luxurious comfort in the backcountry, the MegaLite stands out as a long-term investment for backpackers who want the perfect balance of weight, durability, and cozy rest.
Weight & Packability
Weighing in at just 1 lb 8 oz, the Western Mountaineering MegaLite 30°F is built for backpackers who demand maximum performance in a minimal package. Its ultralight design, paired with a highly compressible 850+ fill-power goose down, allows it to pack down to an impressively small 6-liter volume, saving valuable space in your pack without skimping on comfort. The 12-denier ripstop nylon shell keeps weight low while maintaining durability for long miles and repeated use, making it a great choice for thru-hikers, fastpackers, and anyone chasing big days with a light load. Whether you’re stuffing it into the corner of a minimalist 40-liter pack or loading up for a multi-day trip, the MegaLite slips in easily and stays out of the way until it’s time to unroll its lofty warmth at camp.
Price
Priced at $580, the Western Mountaineering MegaLite 30°F is a significant investment, but one that aligns with its craftsmanship, performance, and longevity. Depending on the length and zipper configuration, the cost varies slightly, yet it consistently reflects Western Mountaineering’s reputation as a premium, made‑in‑USA product. While its price tag may sit higher than competitive bags, the MegaLite’s ultralight design, exceptional compressibility, and durable construction make it a value-packed choice for serious backpackers who prioritize quality sleep gear that lasts for years.
Quality & Materials
Crafted with meticulous attention to detail, the Western Mountaineering MegaLite 30°F showcases the brand’s commitment to premium quality and lasting performance. It’s filled with ethically sourced 850+ fill-power goose down, renowned for its exceptional loft, warmth-to-weight ratio, and long-term resilience. The 12-denier ExtremeLite ripstop nylon shell keeps the bag featherlight while maintaining impressive durability and breathability, ensuring comfort across a range of conditions. Every MegaLite is handmade in the USA, with tight quality control and precise stitching that helps the bag maintain its loft and performance for years of heavy use. This focus on top-tier materials and craftsmanship makes the MegaLite not just an ultralight option, but a long-term backcountry investment built to withstand countless miles on the trail.
Consumer Sentiment: Pros & Cons
Pros:
- Exceptional warmth-to-weight ratio, weighing only 1 lb 8 oz
- Spacious design, ideal for side sleepers or those needing room to move
- High-quality materials and craftsmanship
Cons:
- Significant upfront investment
- Shell fabric requires care to prevent snags
- Warmer than some users prefer for mild conditions
Comparison to Similar Bags
Feathered Friends Swallow UL 20: Warmer and slightly heavier than the MegaLite, the Swallow UL 20 offers a trimmer fit for maximum thermal efficiency in colder conditions.
Feathered Friends Hummingbird UL 20: Even lighter and more minimalist than the MegaLite, the Hummingbird UL 20 delivers a snugger cut that prioritizes warmth over spacious comfort.
REI Co-op Magma 30: The Magma 30 is a more budget-friendly alternative with similar weight and temperature performance, but lacks the MegaLite’s premium materials and handcrafted construction.
Who It’s For
The MegaLite is perfect for the serious backpacker or thru-hiker who wants top-tier warmth, comfort, and packability without the weight. It excels for side and combination sleepers, tall individuals, and those planning spring through fall adventures. Cold-season users should pair it with an insulated pad or layer it with another bag. Ultralight purists with strict gram goals may find it a strong contender, given its exceptional warmth-to-weight efficiency.
