56" waist - where to buy?

Chums do a 4XL which is a 56" waist, not sure if they do cargo pants in that size though.

Try the Big and Tall website, our friend buys most of his clothes from them.

Jamamo.co.uk specialize in large mens clothing.

Here's the Jacamo website link.
Thank you shysal, I couldn't remember the name.

If you look on EBay you will find lots of sellers who do larger clothing , much larger than 3xl. Lots of businesses sell via Ebay.I have bought lady's clothing this way and had no problems. (Not because I need plus size , it's just easier. )

Primark does v large sizes and, if he needs several pairs, they are very competitively priced so you could buy 10 prs and not feel the pinch.
Don't believe the naysayers re quality. They are good.

Cotton traders do large size T-shirts.

Premier man are the best. Big and Tall have been taken over and closed down by Jacamo. Don’t rate them - poor quality.

Such a shame as Big and Tall were very good.

Thank you all - I have mixed and matched from your recommendations and new clothes are winging their way to him. I found one very good additional site called Big Dude. Poor man has no idea of sizing and has been squeezing himself into size L clothing. Yesterday we sourced a couple of Weirdfish T-shirts locally and he was amazed at how much more comfortable he felt whilst wearing one of them.