A bottle (2) having a body portion (4) which comprises first and second major faces (22,24), each extending substantially along the length of the body portion, which are opposite to each other and mutually separated on opposite sides of a first central plane (P1-P1) of the bottle by a spacing (25), wherein the spacing decreases proceeding from the lower end (10) to a central portion (12) and from the central portion to the upper end (14). The bottle further comprises a recess (32) in the first major face (22), the recess being shaped to receive an adult human thumb, the recess having an open end (34) at the first side and a closed end (36) in the first major face, and the recess having a downwardly-oriented upper wall (38) extending between the open end and the closed end.