The Robens Icefall Pro 900 is a lightweight 3 Season Sleeping Bag that is ideal for backpacking and camping trips. The premium quality synthetic fill provides superior insulation and compressibility without down's vulnerability to moisture. The Icefall Pro benefits from a centre zip for easy access and the convenience to partially open when sitting whilst the 3D hood profile and redefined neck baffle position and profile minimise draughts and heat loss. Robens' shark fin foot box with extra insulation allows the foot to comfortably rest in a natural unrestricted position. At just over 1kg the Robens Icefall Pro 900 is a lightweight, reliable and versatile sleeping bag that won't let you down!. Impressive Insulation. The Icefall Pro 900 sets new standards in insulation technology with its use of 900-fill power down, one of the highest-quality insulating materials available. This premium down provides an exceptional warmth-to-weight ratio, offering superior loft and excellent heat retent