I have two! First bought from Lakeland. Second is a genuine numbered Morgan one bought of a chap in the golf club. He is an ex Mog owner from 20+ years ago.
They can be bulky, especially if you get the Irvin type. They do keep you warm though.
If not cold then I end up in lighter waterproofs with layers to suit. A "buff" to keep my neck warm, hat to suit( flat cap/waterproof/trapper style/beenie).
In summer a t-shirt/shorts is fine or olo/shirt/jumper. A hodie s handy too for hatless driving and a quick cover up if needed.
