A retroreflective material comprising: a fixing resin layer; a transparent microsphere embedded in the fixing resin layer, and a portion of the transparent microsphere being exposed; and a transparent resin layer and a reflective layer formed of a transparent metal compound thin film, between the transparent microsphere and the fixing resin layer, sequentially from the transparent microsphere side, the transparent resin layer having a layer thickness L (90°) of 400 to 1000 nm, characterised in that the transparent resin layer has a ratio of a layer thickness L (30°) to the layer thickness L (90°) of 1.35 to 1.50, where: layer thickness L 90 ° = Y 90 ° − X 90 °; layer thickness L 30 ° = Y 30 ° − X 30 °; X (90°): a distance from a central point of the transparent microsphere to an interface between the transparent microsphere and the transparent resin layer in a 90° direction with respect to a plane direction of the retroreflective material; Y (90°): a distance from the central point of the transparent microsphere to an interface between the transparent resin layer and the reflective layer in the 90° direction with respect to the plane direction of the retroreflective material; X (30°): a distance from the central point of the transparent microsphere to the interface between the transparent microsphere and the transparent resin layer in a 30° direction with respect to the plane direction of the retroreflective material; and Y (30°): a distance from the central point of the transparent microsphere to the interface between the transparent resin layer and the reflective layer in the 30° direction with respect to the plane direction of the retroreflective material. a fixing resin layer; a transparent microsphere embedded in the fixing resin layer, and a portion of the transparent microsphere being exposed; and a transparent resin layer and a reflective layer formed of a transparent metal compound thin film, between the transparent microsphere and the fixing resin layer, sequentially from the transparent microsphere side, the transparent resin layer having a layer thickness L (90°) of 400 to 1000 nm, characterised in that the transparent resin layer has a ratio of a layer thickness L (30°) to the layer thickness L (90°) of 1.35 to 1.50, where: layer thickness L 90 ° = Y 90 ° − X 90 °; layer thickness L 30 ° = Y 30 ° − X 30 °; X (90°): a distance from a central point of the transparent microsphere to an interface between the transparent microsphere and the transparent resin layer in a 90° direction with respect to a plane direction of the retroreflective material; Y (90°): a distance from the central point of the transparent microsphere to an interface between the transparent resin layer and the reflective layer in the 90° direction with respect to the plane direction of the retroreflective material; X (30°): a distance from the central point of the transparent microsphere to the interface between the transparent microsphere and the transparent resin layer in a 30° direction with respect to the plane direction of the retroreflective material; and Y (30°): a distance from the central point of the transparent microsphere to the interface between the transparent resin layer and the reflective layer in the 30° direction with respect to the plane direction of the retroreflective material. X (90°): a distance from a central point of the transparent microsphere to an interface between the transparent microsphere and the transparent resin layer in a 90° direction with respect to a plane direction of the retroreflective material; Y (90°): a distance from the central point of the transparent microsphere to an interface between the transparent resin layer and the reflective layer in the 90° direction with respect to the plane direction of the retroreflective material; X (30°): a distance from the central point of the transparent microsphere to the interface between the transparent microsphere and the transparent resin layer in a 30° direction with respect to the plane direction of the retroreflective material; and Y (30°): a distance from the central point of the transparent microsphere to the interface between the transparent resin layer and the reflective layer in the 30° direction with respect to the plane direction of the retroreflective material.