A phone case designed to secure a phone to a user's hand while permitting the user to readily rotate the phone and case relative to his hand without requiring the user to release the phone from his hand. A case body has at least one slot, a portion of which is arcuate. A strap extends from a strap connector on the inside of the case body, outwardly through one of the slots, across a portion of the outside of the case body, inwardly through a slot, and to a strap connector on the inside of the case body. The size of the strap permits a user to slide one or more fingers between the strap and the outside of the case body. The strap slides within the slot(s) when the phone case is rotated relative to a user's hand.