Thermo mats for folding roofs 7-ply. Sleeping roof-tent bellows-insulation for VW T5 short wheel base. Insulation against heat and cold. Condensation water/ moisture proof. Mounting inside: with press-buttons/Velcro fastener. Insulates in summer and winter. Especially applicable for tent bellow-insulation at the Reimo sleeping roof VW T5 short wheelbase, foldable at the front.