A tread for a pneumatic tire includes a plurality of trapezoidal channels, each trapezoidal channel extending circumferentially from a first end to a second end, the first end being wider than the second end, a sipe extending laterally adjacent the second ends of the trapezoidal channels, and a plurality of rectangular channels, each rectangular channel extending circumferentially from a first end to a second end, the first ends of the rectangular channels being adjacent the sipe.