Flat front size zip trousers - any out there?

[Winterjoy]

SIDE not size - can't edit title!

Looking for flat front side zip trousers - anyone seen any? Any colour and preferably suitable for smart or smart/casual. Google search doesn't seem to pick up the filter of 'side zip', I just get a load of results for front fastening options.

Not a side zip but side buttons, Seasalt do some I think are called Waterdance. They have a flat front and are very flattering.

Whistles do some side zip trousers.