Tyre suppliers Pirelli have revealed which compounds will be taken to the first three races of the 2018 season at Australia, Bahrain and China.
Pirelli announced a new line-up of tyres for the new season with all compounds softer than the 2017 equivalents. However, the new hypersoft tyre is being kept under wraps for now.
There are three compounds available for each team at each race and the season opener in Melbourne will see the yellow-marked soft, the red-marked supersoft and the purple-marked ultrasoft make an appearance.
Heading into Sakhir, the softs and supersofts will remain but the ultrasofts are switched out for the white-marked medium compound.
And then, in Shanghai, the ultrasofts will be reintroduced alongside the softs and mediums.