Nipple and nipple assembly

A nipple comprising:

• a breast portion having a central region;
• and
• a latch portion extending from the breast portion, the latch portion comprising a teat portion and an areola portion;
• wherein the latch portion is radially offset from the central region of the breast portion and includes an outer wall;
• wherein the outer wall of the latch portion includes a first region having a first wall thickness and a second region having a second wall thickness, wherein the second wall thickness is less than the first wall thickness;
• and
• wherein the teat portion has a first end which is distal to the areola portion and a second end which is proximal to the areola portion, wherein the second region is provided between the first end of the teat portion and the second end of the teat portion;
• and wherein the first end of the teat portion and the second end of the teat portion define a first length therebetween and the second region has a second length, wherein the second length is less than the first length.