Long necked headcover for putter?

[Mongoose]

I have a blade putter and just cannot find a headcover that will stay in place, so was wondering if there are any long necked ones, sorta like a knitted putter headcover. Did some searches on Google and a couple in the US came up that might be suitable, but wondered if anyone here knew of something suitable available in the UK.
Thanks.

 

[brendy]

Google Golf sox, they do knitted long neck stuff which might do the job.