The X57, often referred to as the Snake, was a bus route that ran between Manchester and Sheffield via Glossop.

In September 2021, Hulley's announced plans to extend the route to Macclesfield, however the planned extension was cancelled due to driver shortages.

[2][3] The service was eventually withdrawn due to low passenger numbers.

Hulleys' 257, which ran parallel to the X57 between Sheffield and Bakewell via the Ladybower Reservoir, was increased to an hourly frequency with a £1 flat fare as a partial replacement of the route.

[6] The bus called at the following stops: The X57 was supplemented by the X56 which operated between Glossop and Manchester only on the same route.