Male snap button and female snap button

A female snap button (40, 140) comprising:

• a female snap body (50, 150, 250);
• and
• a fixing member (30, 30a) configured for fixing the female snap body (50, 150, 250) to a fabric (2),
• wherein the female snap body (50, 150, 250) comprises:
• a female-side engagement member (60, 260) in annular shape, capable of being removably engaged with a male-side engagement part (21) of a male snap button (10),
• an annular member (51A, 151A, 251A) made of metal, including a holding part (51, 151, 251) that holds the female-side engagement member (60, 260), and
• a plurality of claws (57, 157, 257) made of metal,
• wherein the female-side engagement member (60, 260) or the annular member (51A, 151A, 251A) defines an opening (58, 158, 258) that exposes the fabric (2) inside in a radial direction thereof,
• a diameter (D2, D3, D4) of the opening (58, 158, 258) is greater than a length (W2, W3, W4) in the radial direction from an outside edge of the opening (58, 158, 258) in the radial direction to an outside edge of the female snap body (50, 150, 250) in the radial direction, and
• the fixing member (30, 30a) comprises a claw accommodation part (33) configured to receive the plurality of claws (57, 157, 257);
• wherein the annular member (51A, 151A) comprises a bottom wall (54, 154),
• the plurality of claws (57, 157) extends from a radially inside edge (54a, 154a) of the bottom wall (54, 154), and
• the radially inside edge (54a, 154a) of the bottom wall (54, 154) and proximal edges (57a, 157a) of each of the plurality of claws (57, 157) define the opening (58, 158).