Big Meadows Ultralight 0° Wide Winter Backpacking Quilt

At 22 oz for the Regular, the Big Meadows Ultralight 0° is the most capable quilt in the JRB lineup — 1000FP down and Argon 67 shell for winter backpackers who refuse to carry a sleeping bag into the backcountry.

The Big Meadows Ultralight 0° uses the same half-taper shape as the rest of the Big Meadows series: 55 inches wide from the head end to the midpoint, tapering to 45 inches at the foot end. That width across the shoulders and torso keeps side sleepers covered through the night — critical when temperatures drop to zero and there is no margin for a quilt that rides up. The narrower foot section eliminates dead air and excess weight without sacrificing the coverage that matters. A snap-and-drawcord system at the head end forms shoulder pockets that seal out drafts at the neck. The Big Meadows Ultralight 0° is a dedicated top quilt for ground sleepers and winter tent campers.

How It Gets to 22 oz: 1000 Fill Power Down, Argon 67 Shell

The Big Meadows Ultralight 0° is filled with 1000 Fill Power RDS-certified down — the highest-grade down available. Fill power measures how many cubic inches of loft one ounce of down produces when fully expanded. At 1000FP, significantly less down by weight is needed to reach the 0°F rating compared to 850FP alternatives — the primary reason this quilt achieves a true winter rating without the bulk of a conventional sleeping bag. The Big Meadows 0° uses 850 fill power down at a lower price point with the same half-taper coverage.

Every Big Meadows Ultralight 0° ships with a 33% overstuff by weight. Down naturally migrates toward the ends of each baffle over time, leaving the middle of the baffle thinner and reducing effective insulation across the full length of the quilt. The extra fill means that even after downshifting has occurred, every section of every baffle retains enough loft to hold the 0°F rating — in a winter quilt, cold spots through the center of the quilt are not recoverable on a frozen night. The same buffer also compensates for loft loss as the down accumulates dirt and oils between cleanings. No additional overstuffing is needed or recommended. For three-season trips down to 20°F, the Big Meadows Ultralight 20° handles shoulder-season conditions at 16.5 oz.

The foot box is formed using a drawcord, cord-locks, and double-sided Kam Snaps. On cold nights — and at 0°F, every night is cold — snap it closed and cinch the drawcord for a sealed foot pocket that keeps warm air in. Double-sided Kam Snaps also let you stack a second quilt on top and connect the two together in the most extreme conditions. Three tabs along the sides provide additional attachment points.

The shell is Argon 67 — a 0.67 oz ripstop nylon independently tested and certified downproof — with a DWR coating. It is the lightest shell fabric in the JRB lineup. While 1000FP down is the primary reason the UL version weighs less than the standard Big Meadows 0°, the Argon 67 shell contributes to the difference as well. Every quilt ships in a storage bag that does not compress the down and allows airflow, keeping the fill healthy for long-term storage. For a rectangle-cut 0°F quilt, the Old Rag Mountain 0° offers 48 inches of consistent width.

Named for the Trail

Big Meadows in January is a different place. The campground is closed, the roads are gated, the trail packed with snow. The hikers who are out there came specifically for the cold — a 0°F rating isn't a marketing number, it's a requirement. The Big Meadows Ultralight 0° was built for those nights.

Handmade in Pennsylvania by Jacks R Better — making quilts since 2004. In-stock quilts ship the same or next business day.

Specs

• Temperature rating: 0°F (-17°C) comfort
• Fill: 1000 Fill Power RDS-certified down
• Shell: Argon 67 (0.67 oz ripstop nylon) with DWR coating, independently tested and certified downproof
• Construction: Sew-through