Emily Mortimer designed Sierra with the mindset that it would offer protection. When everything else seems unsure, you can always rely on your jewellery to remain certain and define you - similar to body armour.
The double hoop bracelet combines a polished ring interlocked with a larger twisted ring. As EM bracelets go it is smaller and more detailed than most but could be worn with literally anything. 
 
Dimensions: 16 x 12mm
Silver metal: Sterling silver
Gold Metal: Sterling silver 18ct gold plated
Chain Length: 7.5" adjustable to 7"