Rattan sun loungers generally costs upwards of £100 if you want ones that will last and come in colours of grey, brown, black and sometimes white.
While there are lots of brands that make a Rattan Sun Lounger the most popular brands are Keter and Outsunny and these can be purchased at Amazon, Argos, B&Q, Homebase, Wickes, ASDA and Tesco.
Most rattan sun loungers are foldable so you can get the best position for the sun and some also come with extras such as a rattan table and cushions.
If you're lucky you'll get a set of rattan sun loungers for cheaper than buying separately and these rattan sun lounger sets come delivered or local pickup from stores like Argos, B&Q, Tesco etc.