www.colemancroft.com/Details.cfm?ProdID=277
OK - before you all shout yuck - I know it's a bit horsey looking (not helped by the bit about being good for riding) - but it looks much better in RL - it has a detachable hood, is waterproof - and is less than £60.
On that site it is only in blue but they are in purple, red, etc etc.
My mum (age 65 ish) has just bought one (again I'm not selling it here am I?) - but she is a very stylish 65.
[runs away to hide after first - and possibly last - posting on S&B]