Cumulus Lite Line 400

The Cumulus Lite Line 400 pushes the Lite Line series into proper three-season territory, with 400 g of 850-fill-power Polish goose down (96/4 ratio) rated to a 2 °C comfort limit, -4 °C at the limit rating, and -20 °C at the extreme end under EN ISO 23537 testing. That's enough for early autumn and late spring nights above the treeline, though it's still built around minimal weight rather than deep winter margins. Trapezoidal baffles with a differential cut — the outer shell cut slightly fuller than the down-facing liner — help the fill loft evenly along the body. Total weight is 705 g, packing to 25 × 15 cm, a modest jump over the 300 g bag for a meaningful drop in rated temperature. The shell is 15D Pertex Quantum ripstop nylon at 29 g/m², with a matching Pertex Quantum liner. Internal length is 202 cm, shoulder width 77 cm, hip width 51 cm. A storage sack is included. Made for hikers prioritising pack weight over redundant warmth.