Climbing boot for a rail-guided climbing system, which can be used in particular as a climbing formwork, climbing frame, protective climbing wall and/or climbing working platform, wherein the climbing boot comprises: - a main boot body having first and second rail guide elements (3a, 3b), wherein at least the first rail guide element, in particular the first and second rail guide elements (3a, 3b), is/are arranged on the main boot body so as to be pivotable and/or extendable in such a way that, in the pivoted and/or extended guidance state, a climbing rail, which is arranged slidably between the first and second rail guide elements (3a, 3b) is guided by the rail guide elements (3a, 3b) by portions of the climbing rail being surrounded by the rail guide elements (3a, 3b), - a receiving element that is arranged on the main boot body and is designed to interact with a first portion of a bracket element (8a, 8b), arranged in a stationary manner on a concreting segment of a building, in such a way that, when the receiving element is attached to the first portion of the bracket element (8a, 8b), a load of the climbing boot can be introduced into the bracket element (8a, 8b), characterized in that the climbing boot further comprises: - a sliding element that is provided with a handle and is designed in such a way that it is mechanically coupled to the main boot body and the first rail guide element, and, when the first rail guide element is in the guidance state, sliding of the sliding element in relation to the main boot body in a decoupling direction, which sliding is caused by an actuation of the handle, results in the first rail guide element being set into the non-pivoted and/or retracted initial state in order to release the climbing boot from being guided by the climbing rail. - a main boot body having first and second rail guide elements (3a, 3b), wherein at least the first rail guide element, in particular the first and second rail guide elements (3a, 3b), is/are arranged on the main boot body so as to be pivotable and/or extendable in such a way that, in the pivoted and/or extended guidance state, a climbing rail, which is arranged slidably between the first and second rail guide elements (3a, 3b) is guided by the rail guide elements (3a, 3b) by portions of the climbing rail being surrounded by the rail guide elements (3a, 3b), - a receiving element that is arranged on the main boot body and is designed to interact with a first portion of a bracket element (8a, 8b), arranged in a stationary manner on a concreting segment of a building, in such a way that, when the receiving element is attached to the first portion of the bracket element (8a, 8b), a load of the climbing boot can be introduced into the bracket element (8a, 8b), characterized in that the climbing boot further comprises: - a sliding element that is provided with a handle and is designed in such a way that it is mechanically coupled to the main boot body and the first rail guide element, and, when the first rail guide element is in the guidance state, sliding of the sliding element in relation to the main boot body in a decoupling direction, which sliding is caused by an actuation of the handle, results in the first rail guide element being set into the non-pivoted and/or retracted initial state in order to release the climbing boot from being guided by the climbing rail. - a sliding element that is provided with a handle and is designed in such a way that it is mechanically coupled to the main boot body and the first rail guide element, and, when the first rail guide element is in the guidance state, sliding of the sliding element in relation to the main boot body in a decoupling direction, which sliding is caused by an actuation of the handle, results in the first rail guide element being set into the non-pivoted and/or retracted initial state in order to release the climbing boot from being guided by the climbing rail.