Hudson River 20°F Multifunction 3-Season Camping Quilt
One quilt, two jobs. A 20°F top quilt on the ground or in your hammock, and an underquilt hung beneath it when the trip calls for one. 850 fill power down, 21.5 oz, 48 inches across.
At 21.5 oz for the Regular, the Hudson River is a 20°F three-season quilt that works on both sides of the hammock: over you as a top quilt, or under you as an underquilt. 850FP down, 1.1 oz 20 denier taffeta shell.
Top Quilt or Underquilt. Pick One Tonight.
Any top quilt works inside a hammock, same as on the ground. The Hudson River also hangs underneath. Attach it with the JRB Underquilt Suspension System (sold separately) and it insulates against the cold air beneath you — the primary cause of cold-weather hammock discomfort. Ease the end drawcords off and it drops away from the hammock to let air move across your back — we call that opening the windows, and it is handy on the nights you climb in hot. It fits gathered-end and bridge hammocks including ENO, Hennessy, Warbonnet, Dutchware Chameleon, and most DIY designs.
How It Gets to 21.5 oz: 850 Fill Power Down, 1.1 oz 20 Denier Taffeta Shell
The Hudson River is filled with 850 Fill Power RDS-certified down. Fill power measures how many cubic inches of loft one ounce of down produces when fully expanded — at 850FP, the Hudson River achieves its 20°F rating with less fill by weight than quilts built with lower-grade down. The shell is 1.1 oz, 20 denier taffeta with a DWR coating that sheds light moisture and condensation. Backpackers who want to shave weight can step up to the Hudson River Ultralight, which uses 1000FP down and 10 denier 0.67 oz nylon shell to reach 16.2 oz at the same 20°F rating.
The Hudson River is built with box baffles — fabric walls stitched between the shell and the lining that form closed chambers the down expands into at full thickness. A sew-through quilt skips those walls and stitches the two layers straight to each other, so every seam is a strip of pinched fabric with no insulation in it. Those strips are cold spots, and you feel them at 20°F. Box baffles take longer to build and add a little weight, which is why they are the first thing cut from cheaper three-season quilts.
Every Hudson River ships with a 25% overstuff by weight. Down naturally migrates toward the ends of each baffle over time, leaving the center of each baffle thinner. The extra fill means every section retains enough loft to hold the 20°F rating even after downshifting occurs — no cold spots through the middle of the quilt. The same buffer compensates for loft loss as the down accumulates oils between cleanings.
The foot box is formed using a drawcord, cord-locks, and double-sided Kam Snaps. Snap it closed on cold nights for a sealed foot pocket; leave it open on warm nights and use it as a blanket.
Cut 48 inches across, it covers you without pooling underneath or bunching up when you roll. DGrav is our owner, lead field-tester, customer service rep, quality control and shipping department. He's 6'3", 200 lbs, and has slept under a Hudson River since 2009. It's still his go-to top quilt in a hammock, on the ground, or in the van. If you sprawl and want more across the shoulders, the Big Meadows 20° is cut 55 inches wide.
Stack It With Another Quilt for Colder Nights
The double-sided Kam Snaps do more than close the foot box. Any Multifunction quilts of the same length snap together into a single layered system — a Shenandoah 40°F over a Hudson River 20°F reaches 0°F capability, and nothing stops you adding a third. Any temperature combination works, multiples of the same rating included. Quilts made from 2019 on have the snaps; before that we used Omni Tape, which doesn't stack. Every JRB quilt you own makes the next one warmer.
At 21.5 oz, the Hudson River carries a full 20°F temperature rating through the shoulder seasons — light enough to justify on three-season trips where a summer quilt won't cut it, and warm enough when temperatures drop overnight. This quilt was built for three-season backpackers who want a clean, close fit without counting grams.
Named for the Trail
The Hudson River has been drawing families to its banks for generations. Bear Mountain State Park sits just west of where the AT crosses the river — miles of trails, a campground where families have been making their first memories on the trail for decades, and fall color that peaks earlier here than almost anywhere in the Northeast. The nights cool fast in the Highlands even in late September, faster than anyone packing on a Friday afternoon remembers to account for.
The fire burns down, the kids fall asleep in the tent, and the cold off the river is sharper than the forecast suggested. The Hudson River was built for those trips: campfires, s'mores, mornings cold enough to see your breath, and the particular comfort of knowing everyone in the tent is warm.
Handmade in Pennsylvania by Jacks R Better — making quilts since 2004. In-stock quilts ship the same or next business day.
Specs
| Specification | Regular | Long |
|---|---|---|
| Recommended height | 5′10″ and under | Over 5′10″ |
| Weight | 21.5 oz (0.61 kg) | 23.0 oz (0.65 kg) |
| Length | 78.0 in (1.98 m) | 86.0 in (2.18 m) |
| Width | 48.0 in (1.22 m) | |
| Temperature rating | 20°F (-7°C) | |
| Down fill power | 850+ | |
| Down weight | 11.01 oz | |
| Loft | 2.5 in | |
| Shell | 1.1 oz 20 Denier Nylon Taffeta w/ DWR | |
| Construction | Box Baffles | |
| Features | Multi-function – 3 Season | |
| Includes | Zippered storage bag (underquilt suspension sold separately) | |
| Made in | Hulmeville, Pennsylvania, USA | |