Thermodown 15 Down Quilt vs Thermodown 30 Down Quilt

Both are 2026 Paria Thermodown quilts with the same 800 fill-power RDS duck down, 20D ripstop shell and split baffle design, so the real choice is warmth versus weight. The 15 is the three-season pick: 20 oz of fill and a 15F rating for cold nights, at 33 oz packed. The 30 is the summer and fast-and-light pick: 14 oz of fill, 27 oz total, rated for warmer nights. Owners of both rate them 4.8 and praise warmth, packability and comfort; the common complaint on the 15 is that 56 inches of width is tight for larger sleepers.

• Choose the Thermodown 15 if you camp in cold shoulder seasons, sleep cold, or want one quilt for most of the year.
• Choose the Thermodown 30 if you mostly backpack in summer, count ounces, and want a lighter quilt for warm nights.