Kit Air Circulation / 3D Mesh mattressDRYWEAVE New accessory to be positioned underneath the mattress. Made from a lightweight (450g m2) woven polypropylene it's semi elastic and allows a free flow of air between tent base and mattress, increasing ventilation and reducing the chance of condensation. The lightweight mesh construction is compression resistant (1 ton m2) and is available in three sizes to fit all models of roof tent.