The Fossil Coil bracelet is slightly chunkier - less flexible, but stronger.The pictures show it made in Alumide (aluminium powder mixed with nylon...

This is very flexible, very bendy. It doesn't actually expand much past it's 55mm diameter, but it's pretty neat! You wrap it round your wrist to ...

65mm hole - can easily increase for less tiny hands. This is thick, strong and slightly squishable.

This is a version of the polyoptic bangle with a handsome split to fit over larger hands. The central hole is 65mm round, but can open up to about...