tldr; Reddit generally praises the Cumulus X-Lite for its lightweight design and high fill power, but frequently notes its high price for the temperature rating.
Check pricesScores based on sentiment analysis of topic-related comments
Best praise vs top criticism for Cumulus X-Lite
“Picked up one of the Meadowphysics Grasshopper packs in the green ultragrid. In case anyone is interested it came in a 9.48oz. and can for sure fit a Bearboxer Contender horizontally at the top. I also fit a 1/8" sleeping pad, Cumulus X-lite 200 sleeping bag, Hexamid tarp, SMD Serenity net tent, Montbell plasma rain jacket, Kuiu hoody, and an inflatable pillow inside without stressing anything. Plenty of room in the front zip pouch for stakes, trowel, cold soak jar, and electronics bag. Seems like a pretty great option for hikes where 2 liters of water will cut it. Could probably get away with another liter in the bottom pocket if necessary I suppose. Pretty neat pack.”
“I think the standard 2/3rds zip, at an 11g weight penalty vs. the 1/3rd zip, is worth the extra weight. I just used my hooded X-Lite 300 with a 2/3rds zip for 9 nights in the Sierra, sleeping at ~8,000 to 12,000 feet elev. I used the bag as a quilt (fully unzipped and rotated 90 degrees) 6 nights; as a fully zipped bag 2 nights; and one night where I started with the bag as a quilt and finished all zipped up. A 1/3 zip does not allow for kicking a leg out if it's too warm. The added versatility of the 2/3rds zip extends the usable range of the bag in warmer temps. Being too hot in a bag sucks almost as much as being too cold. I happily accept the 11g penalty for the added versatility.”
339 Reddit opinions analyzed • Last updated 2/24/2026