Modern models now come in a wide range of rust-attracting metal, with nylon 'bottom hammocks' commonly green in colour. These models are (to the untutored) supposedly easier to erect, but the metallic quality of the chair led to a sharp rise in the number of related injuries [It's no joke - see 'Deck-chairs: putting a finger on the problem, rather than in it' by McGuiness et al in Injury 1994 Dec;25(10):635-6, the official journal of the British Trauma Society. ] . A deckchair can be dangerous, causing frequent summertime injuries to adults and children . Sometimes older deckchairs can lead to lower back pain and sore buttocks when threadbare canvas finally rips away from wooden frames, leaving occupants lying on the ground amid debris and surrounding laughter. Other, plastic variants of deckchair can lead to excessive skin irritation, a truly remarkable build up of static electricity and lashings of stale sweat around the buttocks on a hot day.