A pad (10) of interleaving linear cells (2) has loop straps (1) to hold the central section of the cells (2) linearly in parallel with the cell axis (11), whilst the opposite ends (3) of each cell (2) are secured a pre-determined distance (4) off-set from the cell axis (11). The distance (4) can vary along the length of the pad. By fixing of the ends (3) of the cells (2) at a distance (4) away from the cell axis, each end (3) of the cell (2) is pulled away from the centre axis of the cell, the loop straps (1) and the cell (2) become tensioned, preventing the central cell section from moving or rotating. The resulting cell has been seen to dramatically reduce the movement of a user along the pad with improved user comfort and enhanced pressure relief.