These are a favourite with many bands:

He sells three types - Standard, Bandspec and Ultimate.

TheStandard and the Bandspec will fold up and can be worn in a pouch on your belt. The Ultimate is like the tank - bulletproof! It will not fold and the best you can do is carry it under an arm or over a shoulder. But it is the best.

http://www.misterantony.com/

Regards

Chas