The invention relates to a reinforcement element for a glove, especially for a goal keeper's glove, which is designed to allow a bending in a first bending direction and to prevent a bending in a second bending direction which is contrariwise to the first bending direction. To prevent reliably that the joints of the fingers are subjected to high forces during fisting of a ball, the invention is characterized in that the reinforcement element comprises two bending elements which extend in a longitudinal direction of a finger, which bending elements comprise a number of blocking elements for the prevention of a bending in the second bending direction, wherein the two bending elements run during regular use laterally beside the finger which is to be protected, wherein the two bending elements are connected to another by at least two connecting bridges. Furthermore, the invention relates to a glove, especially to a goal keeper's glove with such a reinforcing element.