The Enlightened Equipment Revelation 10 850 shares its 10°F (-12°C) manufacturer rating with the rest of the Revelation 10 range but uses a shingled baffle construction rather than the continuous baffles found on most EE quilts — overlapping baffle chambers instead of parallel channels, a construction detail that sets this particular model apart within the lineup. Fill is 850-fill-power grey duck down at about 547 g, bringing total weight to 736 g in the Regular length (up to 183 cm).
The footbox opens fully flat, converting the quilt from an enclosed foot pocket to an open blanket depending on conditions, and the 10D nylon ripstop shell carries a DWR finish. The down is RDS-certified with a PFC-free treatment, following the same sourcing standards as the rest of the range.
At under 750 g for a -12°C rating, it's a reasonably efficient cold-weather quilt for backpackers heading into shoulder-season or light winter conditions, though anyone chasing the lowest weight at this temperature should compare it against the 950-fill version, which reaches a similar rating for less.