Electronic device cover

A cover for forming a watertight enclosure enclosing an electronic device having a display, the cover comprising:

• (a) a first member comprising:
• (i) a protective membrane operable to transmit touchscreen-type user input to the display;
• and
• (ii) a sealing mount attached to said protective member, said sealing mount defining a registration profile extending along the entire perimeter of said protective membrane, said sealing mount defining a stanchion projecting parallel and spaced-apart from said registration profile;
• and
• (b) a second member comprising:
• (iii) a second-member frame made of a rigid plastic material;
• and
• (iv) a shell over-molded to said second-member frame, said shell being made of a soft and elastomeric material, said shell defining a compression profile extending along the entire perimeter of said shell, said shell at said compression profile being dimensioned for interlocking with said sealing mount at said registration profile so as to removably form a watertight seal between said first and second members.