In reply to James Malloch: Terra Nova's Solar Competition 2 is under 1.2kg & is pretty robust, and their Zephyros is a great deal at £150 (still only 1.8kg). Terra Nova tents are deliberately over-specced in construction so tend to be more robust/waterproof than their figures suggest. I spend over 100 nights a year in my Quasar & it's still going strong (bought 1995)