Abstract: A single runner ski-sled for use by youngsters on snowy slopes and particularly adaptable to molded plastic construction. The ski-sled comprises a principal frame member to which the single runner is permanently attached and a removable seat member on the frame is supported by a disengageable strut member at the outboard ends. Structural elements utilize I and C cross-section for strength with minimal weight and incorporate integral, resilient fastening devices to facilitate quick and easy assembly and disassembly of the ski-sled components. The device can be compactly packaged or stored.