Looking to invest in a pair of waterproof shorts, need to be generous sizing(rugby thighs & kebab belly).
Any recommendations would be great.

Madison DTE are pretty generous, I have big legs and backside, but I’m considering braces to keep them up. Quite warm though, more of a winter short.

I have some Dirtlej Trailscout waterproof shorts and if you are looking at these then I’d definitely size up as I’m a trim-ish 32 and the Mediums I bought mean I shan’t be putting any more weight on.

Polaris waterproofs are quite generous.
I got some braces off amazing which are fantastic for keeping them up as well.

+1 for Polaris

I find my madison Zenith 4 season shorts spacious, the water proof shorts are the same cut so they could work for you.

I’ve got a couple of pairs of Polaris AM Flux waterproof shorts and they are brilliant, even better if you can pick them up on offer.

Only XL & XXL left & water resistant, but good price

No idea of fit

https://www.halfords.com/cycling/cycling-clothing/shorts-trousers/boardman-mtb-water-resistant-shorts-red