Big Meadows Ultralight 20° Wide 3-Season Backpacking Quilt

At 16.5 oz for the Regular, the Big Meadows Ultralight 20° handles the full shoulder season in a single quilt — 1000FP down and Argon 67 shell for three-season backpackers who won't carry extra weight just because the nights turned cold.

The Big Meadows Ultralight 20° uses the same half-taper shape as the standard Big Meadows 20°: 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 — there's enough quilt to stay tucked around you rather than riding up. The narrower foot section eliminates dead air and excess weight without sacrificing coverage where it matters. A snap-and-drawcord system at the head end forms shoulder pockets that seal out drafts at the neck. The Big Meadows Ultralight 20° is a dedicated top quilt for ground sleepers and tent campers.

How It Gets to 16.5 oz: 1000 Fill Power Down, Argon 67 Shell

The Big Meadows Ultralight 20° 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 20°F rating compared to 850FP alternatives, which is how this quilt gets to 16.5 oz without compromising warmth. The Big Meadows 20° uses 850 fill power down at a lower price point with the same half-taper coverage.

Every Big Meadows Ultralight 20° 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 20°F rating — you don't end up with cold spots through the center of the quilt where the fill has thinned out. 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 summer trips, the Big Meadows Ultralight 40° covers warm-weather conditions at 13 oz. For winter expeditions down to 0°F, the Big Meadows Ultralight 0° extends the same ultralight build to a 0°F rating.

The foot box is formed using a drawcord, cord-locks, and double-sided Kam Snaps. On cold nights, snap it closed and cinch the drawcord for a sealed foot pocket that keeps warm air in. On hot nights, leave it open and use the quilt as a blanket — no need to unpack a separate layer. Double-sided Kam Snaps also let you stack a second quilt on top and connect the two together in colder 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 20°, 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. Backpackers who prioritize minimum weight over shoulder coverage should look at the Hudson River Ultralight.

Named for the Trail

Big Meadows gets cold. At 3,500 feet in Shenandoah, October nights drop fast — frost on the tent by midnight, ice in the water sources by morning. The same thing plays out every April, when the earliest northbound thru-hikers push through the Shenandoah before the trees have leafed back out. The Big Meadows Ultralight 20° was built for those miles: the shoulder season, when the trail is quieter and the nights demand more than a summer quilt.

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

Specs

• Temperature rating: 20°F (-7°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