Mobile device case

A case for a mobile device having front and rear faces, and a plurality of sides between the front and rear faces, the sides forming the perimeter of the mobile device, the case comprising:

• an outer rim adapted to cover the plurality of the sides of the mobile device around the perimeter thereof, the outer rim having one or more openings therein;
• a back cover comprising a first side and a second side opposite the first side, wherein the back cover is attached to the outer rim to cover the rear face of the mobile device, the back cover having one or more openings therein,
• the back cover, outer rim, and rear face of the mobile device defining a slot therebetween,
• the outer rim and the back cover further defining a slot opening therebetween and the rear face of the mobile device at the second side of the back cover, the slot opening providing access to the slot,
• the back cover further comprising a locking mechanism at the first side of the back cover opposite the slot opening;
• and
• a design insert adapted to be removably received in the slot through the slot opening and releasably secured at an edge of the design insert by the locking mechanism, the design insert having one or more openings in line with the one or more openings in the back cover.