Patizon G 250

The Patizon G 250 is a lightweight summer down bag filled with 250 g of European goose down rated at 850 cuin and a 90/10 ratio. ISO EN 23537 testing gives a comfort rating of 4 °C, a limit of -1 °C and an extreme of -15 °C — this is a warm-summer-night bag, not one for cool shoulder seasons. The shell is recycled Toray Airtastic nylon (33 g/m²) with a DWR finish, built with Z-baffle construction that splits the fill evenly between the top and bottom halves; a differential cut and two-way zip make venting easy. An adjustable anatomical hood with a CLO Vivo synthetic collar adds insulation where down alone struggles to seal. The down is RDS-certified, the fabric recycled, and the bag is made in the Czech Republic. At 547 g, the G 250 sits among the genuinely light summer bags suited to ultralight kit lists for trips with minimal overnight frost — below freezing, comfort drops off quickly and you'll want an extra layer.