Fabric for upholstering a chaise longue

[TooMuchRain]

Could anyone suggest where I might be able to buy fabric for recovering a chair? And any tips on the kind of fabric would be hugely appreciated!
I've never tried upholstery before and I can see how to remove and replace the cover but am a bit stuck on the new fabric

Clarke and Clarke do a very good range at reasonable prices. Their website is good. I'd go for something plain as it's your first time.

That is very helpful thanks - and there is a stockist near me