Patizon R600

The Patizon R600 is a three-season down bag from the Czech manufacturer, rated to −2 °C comfort, −8 °C lower limit, and −26 °C extreme — a noticeably warmer sibling of the R300, suited to late autumn, low-altitude winter, or high-mountain summer. Its 600 g fill of recycled duck down (90/10 ratio, 650 cuin) sits in a box-baffle construction with horizontal Z-shaped chambers that limits down migration and keeps the insulation layer even. The mummy cut with an anatomical footbox, differential cut, and a full-length two-way zip on the left side balances room against weight, while a draft collar and draft tube along the zipper cut heat loss. Shell and liner use recycled Toray Airtastic nylon (38 g/m², DWR C6), and the hood cinches with a simple drawcord. According to the manufacturer, the bag weighs from 925 g in size S. Packed size grows to 32×22 cm — noticeably bulkier than the summer R300, in line with the heavier fill. For hikers chasing a low base weight, that's the trade-off: more warmth for more pack volume. It suits anyone wanting a single bag to cover most of the year outside deep winter.