Marmot Waterproof Trousers, Men Precip Eco Full Zip Pant (Small, Long) £31.54 at Amazon

That particular size may be cheap but the rest are expensive.

Cheers OP, small looks to be my size

Good quality waterproof trousers at a decent price.

Replaced a pair of adidas Core 18 waterproof rain pants (which cost more!) with these after the waterproof coating on the inside started coming off after just a few uses. The quality of these Marmot ones are at least three times as good imo and include multiple pockets (something the adidas ones and rain trousers in general often don’t).

Good find and first deal, @bn2057 - thanks for taking time to share