Ground sheet that protects the base of the tent from damage caused by stones, branches and other items. It also reduces dampness from the rain and cold. When choosing a ground sheet, always remember that the ground sheet should not be larger than the erected outer tent in order to avoid the "funnel effect". 230 x 160cm Designed for use with the Kiruna 2, Okisba 2, Narvik 2 but also works with the Kyrkja 1, Groenland 2, Orbit 3, Koli 1. Weight: 350g 250 x 155cm Designed for use with the Narvik 3, Groenland 2 but also works with the Koli 1. Weight: 400g 250 x 185cm Designed for use with the Orbit 3. Weight: 420g