Good Midi Cables

I am having an issue where my Midi Cables slowly come out of the Midi Maestro.
Obviously when that happens I lose control of the BB and other connected devices.
I think my cables may be too stiff?
I do not have much experience with Midi cables - I only need really short ones, as everything is on the same pedal board.

Can anyone suggest good makes of Midi cables?

I have no problem with Rockboard Midi angle cable