The article of footwear 10 includes a sole portion 12 which is configured to receive a sole of a user's foot 14 thereon, and first and second retaining means in the form of straps 16 and 18 which extend from and are formed integrally the sole portion 12. The straps 16 and 18 are configured to be displaceable relative to the sole portion 12 to enable them to overlap each other to define an opening 20 through which the foot 14 can pass, thereby serving to hold the user's foot 14 captive there between and to maintain contact been a sole of the users foot 14 and a sole receiving surface 22 of the sole portion 12.
