The Convert 20 850 targets the core 3-season range with a -7°C limit rating, using 507g of 850-fill-power duck down distributed roughly 60/40 toward the top of the quilt — more insulation facing the cold air above than compressed underneath the sleeper, where a pad already provides most of the warmth.
Continuous vertical baffles keep that fill evenly spread, and the footbox includes a ventilation option for warmer nights when you want airflow without switching to a completely different quilt. Total weight is 750g in the Regular cut, sized for users up to roughly 183cm. One detail worth flagging: unlike several other quilts in the Convert range, this listing does not show pad-attachment loops, so hikers who rely on cinching the quilt to their sleeping pad should confirm that before buying.
RDS-certified down and PFC-free treatment are standard across the line. As a mid-range 3-season option, it suits multi-day backpacking and thru-hiking where a -7°C margin covers most cold nights without the weight penalty of the Convert 0 or Convert 10 models.